[iLahleko - Loss]
- Authors: Qhali, Itumeleng
- Date: 2021-10-29
- Subjects: Creative writing (Higher education) South Africa , Xhosa poetry 21st century , South African poetry (English) 21st century , Short stories, South African (English) 21st century , Loss (Psychology) in literature , Poetry History and criticism , Bilingual authors , Bilingualism and literature , Bilingualism in literature
- Language: English , Xhosa
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10962/191825 , vital:45169
- Description: My thesis is a collection of poems and prose that explores the disjunction of losses for women and children across the two languages I inhabit, isiXhosa and English. Ukulahlekelwa lithemba, ukudukelwa yingqondo, ukholo, ubuwena, umzimba nothando. For me, isiXhosa captures the innate musicality and deep emotions within a word or a sound that are not available in English. On the other hand, English readily produces visceral images that are more difficult for me to access in isiXhosa. Kolu phononongo ndikwasebenzisa namagama emboleko ukuze ndikhulise isigama. Ndisebenzisa amagama azibeka zinjalo iimvakalelo, angqalileyo kuncwadi lwesiXhosa. Ndisebenzisa zombini ilyric form kunye neprozi ngenxa yesingqi esiphuhliswa yilyric, nangenxa yenkululeko umbali ayifumanayo kwiprozi. As a bilingual writer ndifuthelwe sisingqi nobunzulu bentlungu obufumaneka in the translated and bilingual works of Isabella Motadinyane, noMarina Ivanovna Tsvetaeva, imibongo yeDaikwan eguqulwe nguStephen Watson ethi Song of the Broken String; iimbongi zespanish ezinjengo Antonia Machado; ngendlela abasebenzisa ngayo ulwimi lwabo ukunabisa nokugqithisa umyalezo ngeentlungu abadibana nazo, bakwanaso nesingqi somculo othuthuzelayo kwimibongo yabo. The structure of my thesis is inspired by the innovative mixed genre layout of Sindiswa Busuku-Mathese’s Loud and Yellow Laughter, and the new formats of isiXhosa writing presented in Mthunzikazi Mbugwana’s poetry. My work has also been shaped by the visceral imagery and briefly captured moments of loss in imisebenzi ka S.S Mema, Nontsizi Mgqwetho, noPascale Petit, novangile gantsho. Imisebenzi yabo ikuzobela umfanekiso ngqondweni ophilayo. Bonke abababhali bahambe indlela endinika umdla nendifuna ukuyihamba nam njengombhali omtsha obhala ngeelwimi ezimbini. , My thesis is a collection of poems and prose that explores the disjunction of losses for women and children across the two languages I inhabit, isiXhosa and English. For me, isiXhosa captures the innate musicality and deep emotions within a word or a sound that are not available to me in English. On the other hand, English readily produces visceral images that are more difficult for me to find in isiXhosa. My poems use the music and introspection of the lyric form, as well as the emotional outpouring that prose poetry allows. As a bilingual writer, I am influenced by the transference of musicality and gravity of loss conveyed in the translated and bilingual work of Isabella Motadinyane, the Russian Marina Tsvetaeva, Stephen Watson’s Song of the Broken String, as well as the Spanish poets Antonio Machado. The structure of my thesis is inspired by the innovative mixed genre layout of Sindiswa Busuku-Mathese’s Loud and Yellow Laughter, and the new formats of isiXhosa writing presented in Mthunzikazi Mbugwana’s poetry. My work has also been shaped by the visceral imagery and briefly captured moments of loss in the work of South African poets vangile gantsho, S.S. Mema, and Nontsizi Mgqwetho, as well as the English poet, Pascale Petit. , Thesis (MA) -- Faculty of Humanitites, School of Languages and Literatures, 2021
- Full Text:
- Date Issued: 2021-10-29
- Authors: Qhali, Itumeleng
- Date: 2021-10-29
- Subjects: Creative writing (Higher education) South Africa , Xhosa poetry 21st century , South African poetry (English) 21st century , Short stories, South African (English) 21st century , Loss (Psychology) in literature , Poetry History and criticism , Bilingual authors , Bilingualism and literature , Bilingualism in literature
- Language: English , Xhosa
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10962/191825 , vital:45169
- Description: My thesis is a collection of poems and prose that explores the disjunction of losses for women and children across the two languages I inhabit, isiXhosa and English. Ukulahlekelwa lithemba, ukudukelwa yingqondo, ukholo, ubuwena, umzimba nothando. For me, isiXhosa captures the innate musicality and deep emotions within a word or a sound that are not available in English. On the other hand, English readily produces visceral images that are more difficult for me to access in isiXhosa. Kolu phononongo ndikwasebenzisa namagama emboleko ukuze ndikhulise isigama. Ndisebenzisa amagama azibeka zinjalo iimvakalelo, angqalileyo kuncwadi lwesiXhosa. Ndisebenzisa zombini ilyric form kunye neprozi ngenxa yesingqi esiphuhliswa yilyric, nangenxa yenkululeko umbali ayifumanayo kwiprozi. As a bilingual writer ndifuthelwe sisingqi nobunzulu bentlungu obufumaneka in the translated and bilingual works of Isabella Motadinyane, noMarina Ivanovna Tsvetaeva, imibongo yeDaikwan eguqulwe nguStephen Watson ethi Song of the Broken String; iimbongi zespanish ezinjengo Antonia Machado; ngendlela abasebenzisa ngayo ulwimi lwabo ukunabisa nokugqithisa umyalezo ngeentlungu abadibana nazo, bakwanaso nesingqi somculo othuthuzelayo kwimibongo yabo. The structure of my thesis is inspired by the innovative mixed genre layout of Sindiswa Busuku-Mathese’s Loud and Yellow Laughter, and the new formats of isiXhosa writing presented in Mthunzikazi Mbugwana’s poetry. My work has also been shaped by the visceral imagery and briefly captured moments of loss in imisebenzi ka S.S Mema, Nontsizi Mgqwetho, noPascale Petit, novangile gantsho. Imisebenzi yabo ikuzobela umfanekiso ngqondweni ophilayo. Bonke abababhali bahambe indlela endinika umdla nendifuna ukuyihamba nam njengombhali omtsha obhala ngeelwimi ezimbini. , My thesis is a collection of poems and prose that explores the disjunction of losses for women and children across the two languages I inhabit, isiXhosa and English. For me, isiXhosa captures the innate musicality and deep emotions within a word or a sound that are not available to me in English. On the other hand, English readily produces visceral images that are more difficult for me to find in isiXhosa. My poems use the music and introspection of the lyric form, as well as the emotional outpouring that prose poetry allows. As a bilingual writer, I am influenced by the transference of musicality and gravity of loss conveyed in the translated and bilingual work of Isabella Motadinyane, the Russian Marina Tsvetaeva, Stephen Watson’s Song of the Broken String, as well as the Spanish poets Antonio Machado. The structure of my thesis is inspired by the innovative mixed genre layout of Sindiswa Busuku-Mathese’s Loud and Yellow Laughter, and the new formats of isiXhosa writing presented in Mthunzikazi Mbugwana’s poetry. My work has also been shaped by the visceral imagery and briefly captured moments of loss in the work of South African poets vangile gantsho, S.S. Mema, and Nontsizi Mgqwetho, as well as the English poet, Pascale Petit. , Thesis (MA) -- Faculty of Humanitites, School of Languages and Literatures, 2021
- Full Text:
- Date Issued: 2021-10-29
A case study of lessons learned through empowering and mobilizing unemployed youth into sustainable green jobs within the SANBI – Groen Sebenza partnership programme by a Host Institution in South Africa
- Authors: Fullard, Donovan
- Date: 2021-10-29
- Subjects: South African National Biodiversity Institute , Green movement South Africa , Environmental education South Africa , Communities of practice South Africa , Social learning South Africa , Biodiversity conservation Employees , Job creation South Africa , Mentoring South Africa , Groen Sebenza
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10962/191964 , vital:45183
- Description: This research project constituted as a thesis of limited scope for a Masters in Education Degree (i.e. as 50% of the degree) focusses on a job creation programme named ‘Groen Sebenza’ [Green Work]. Groen Sebenza is an environmental education ‘incubator’ programme driven and implemented by the South African National Biodiversity Institute (SANBI) to unlock green jobs and bridge the gap between education and job opportunities in the biodiversity sector in South Africa. The programme is a key intervention to strengthen biodiversity human capacity development in the biodiversity sector in South Africa, seeking to contribute to transformation of the biodiversity sector, and also address issues of youth unemployment in the country. The young ‘interns’ in the programme were called ‘pioneers’ at the start of the project. This research project explores how a host institution operating as a community of practice within a landscape of practice managed to implement the Groen Sebenza programme by absorbing and appointing all their pioneers into sustainable jobs beyond the pilot project. I sought to better understand the process of supporting and empowering unemployed youth into sustainable green jobs within the Groen Sebenza partnership programme. I drew on Community of Practice (CoP) theory, and its value creation framework to develop this understanding, and I under-laboured the analysis with a social realist analysis of enabling and constraining factors. The unit of analysis of a Community of Practice was a useful focus for the study, as these mentors, managers, and administrators were all involved in supporting the empowerment and retention of the young pioneers in the host institution. To develop deeper insight into the learning and knowing, and value created in and by the Groen Sebenza CoP in the Host Institution, I also sought insight into enabling and constraining factors and how these shaped and contributed to empowerment and retention of the pioneers in sustainable green jobs. The research addressed the main question of ‘How do processes of learning, knowing and value creation contribute to empowerment and retention of unemployed youth in a successful Host Institution in the Groen Sebenza programme, and what enabled or constrained the empowerment and retention processes and outcomes?’. Three sub-questions were used in the study, which focussed on the mentoring, training and workplace experiences and how they contribute to the process of learning and knowing within the Groen Sebenza Community of Practice in the Host Institution? [Addressed in Chapter 4], the value creation elements that emerged in the implementation of the programme in support and empowerment of the pioneers in the Host institution’s Groen Sebenza CoP? [Addressed in Chapter 5], and the enabling and constraining factors that shaped and contributed to the uptake of the Pioneers into sustainable green jobs at the Host Institution within the Groen Sebenza Programme? [Addressed in Chapter 6]. The research was conducted as a qualitative case study, in which I used semi-structured interviews as a key data source, as well as document analysis, and a questionnaire. The study drew on inductive, abductive and retroductive modes of inference since I sought to explore an understanding of the practices and learning that occurred that contributed and led to the successful uptake of Pioneers into jobs, as well as the enabling and constraining factors. The study was interpretive at the epistemic level, and had a social realist under-labouring at the ontological level. Key findings of the study point to the development of enabling cultures of mentoring in workplaces, and the provision of a diversity of workplace learning experiences including formal training. It also points to the importance of personal emergent properties amongst mentors and pioneers that embrace a willingness to work together and build strong relationships, and to learn together. Learning in the community of practice was shown to develop identity and a sense of belonging as pioneers were given meaningful tasks to do and their training and interactions with mentors was experienced as meaningful and relevant. The contributions of the pioneers to the institutional mandate was appreciated by the mentors and therefore also well supported within an empowerment orientation. Various structural factors contributed to this enabling situation, most notably strong support from management as well as good co-operation across divisions. Constraining factors included the physical distances in the province, as well as financial and technical issues such as poor ICT communication systems. Overall, though the study showed that a strong approach to learning in communities of practice supported by empowering mentoring can lead to the integration of young pioneers into sustainable green jobs in the environmental sector. A whole institution approach to this process is, however, needed, and the organisation needs to develop a culture of social learning. As recently as September 2020 as this study was being finalised, the Presidential Employment Stimulus Plan (Office of the President, 2020) following the initial economic shocks emanating from the COVID-19 pandemic, made yet another commitment to using the Groen Sebenza model to create and support sustainable job creation for young people in South Africa today in the environmental sector. This study has been developed and designed to understand those processes and enabling conditions that can support retention and empowerment of young people to take up jobs in the environmental sector today. Its recommendations may therefore be of value to those involved in seeking to support sustainable impacts in terms of retention and employment in programmes such as the Groen Sebenza, and in the Groen Sebenza programme itself as it continues to unfold as a key job creation tool for unemployed youth. , Thesis (MEd) -- Faculty of Education, Education, 2021
- Full Text:
- Date Issued: 2021-10-29
- Authors: Fullard, Donovan
- Date: 2021-10-29
- Subjects: South African National Biodiversity Institute , Green movement South Africa , Environmental education South Africa , Communities of practice South Africa , Social learning South Africa , Biodiversity conservation Employees , Job creation South Africa , Mentoring South Africa , Groen Sebenza
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10962/191964 , vital:45183
- Description: This research project constituted as a thesis of limited scope for a Masters in Education Degree (i.e. as 50% of the degree) focusses on a job creation programme named ‘Groen Sebenza’ [Green Work]. Groen Sebenza is an environmental education ‘incubator’ programme driven and implemented by the South African National Biodiversity Institute (SANBI) to unlock green jobs and bridge the gap between education and job opportunities in the biodiversity sector in South Africa. The programme is a key intervention to strengthen biodiversity human capacity development in the biodiversity sector in South Africa, seeking to contribute to transformation of the biodiversity sector, and also address issues of youth unemployment in the country. The young ‘interns’ in the programme were called ‘pioneers’ at the start of the project. This research project explores how a host institution operating as a community of practice within a landscape of practice managed to implement the Groen Sebenza programme by absorbing and appointing all their pioneers into sustainable jobs beyond the pilot project. I sought to better understand the process of supporting and empowering unemployed youth into sustainable green jobs within the Groen Sebenza partnership programme. I drew on Community of Practice (CoP) theory, and its value creation framework to develop this understanding, and I under-laboured the analysis with a social realist analysis of enabling and constraining factors. The unit of analysis of a Community of Practice was a useful focus for the study, as these mentors, managers, and administrators were all involved in supporting the empowerment and retention of the young pioneers in the host institution. To develop deeper insight into the learning and knowing, and value created in and by the Groen Sebenza CoP in the Host Institution, I also sought insight into enabling and constraining factors and how these shaped and contributed to empowerment and retention of the pioneers in sustainable green jobs. The research addressed the main question of ‘How do processes of learning, knowing and value creation contribute to empowerment and retention of unemployed youth in a successful Host Institution in the Groen Sebenza programme, and what enabled or constrained the empowerment and retention processes and outcomes?’. Three sub-questions were used in the study, which focussed on the mentoring, training and workplace experiences and how they contribute to the process of learning and knowing within the Groen Sebenza Community of Practice in the Host Institution? [Addressed in Chapter 4], the value creation elements that emerged in the implementation of the programme in support and empowerment of the pioneers in the Host institution’s Groen Sebenza CoP? [Addressed in Chapter 5], and the enabling and constraining factors that shaped and contributed to the uptake of the Pioneers into sustainable green jobs at the Host Institution within the Groen Sebenza Programme? [Addressed in Chapter 6]. The research was conducted as a qualitative case study, in which I used semi-structured interviews as a key data source, as well as document analysis, and a questionnaire. The study drew on inductive, abductive and retroductive modes of inference since I sought to explore an understanding of the practices and learning that occurred that contributed and led to the successful uptake of Pioneers into jobs, as well as the enabling and constraining factors. The study was interpretive at the epistemic level, and had a social realist under-labouring at the ontological level. Key findings of the study point to the development of enabling cultures of mentoring in workplaces, and the provision of a diversity of workplace learning experiences including formal training. It also points to the importance of personal emergent properties amongst mentors and pioneers that embrace a willingness to work together and build strong relationships, and to learn together. Learning in the community of practice was shown to develop identity and a sense of belonging as pioneers were given meaningful tasks to do and their training and interactions with mentors was experienced as meaningful and relevant. The contributions of the pioneers to the institutional mandate was appreciated by the mentors and therefore also well supported within an empowerment orientation. Various structural factors contributed to this enabling situation, most notably strong support from management as well as good co-operation across divisions. Constraining factors included the physical distances in the province, as well as financial and technical issues such as poor ICT communication systems. Overall, though the study showed that a strong approach to learning in communities of practice supported by empowering mentoring can lead to the integration of young pioneers into sustainable green jobs in the environmental sector. A whole institution approach to this process is, however, needed, and the organisation needs to develop a culture of social learning. As recently as September 2020 as this study was being finalised, the Presidential Employment Stimulus Plan (Office of the President, 2020) following the initial economic shocks emanating from the COVID-19 pandemic, made yet another commitment to using the Groen Sebenza model to create and support sustainable job creation for young people in South Africa today in the environmental sector. This study has been developed and designed to understand those processes and enabling conditions that can support retention and empowerment of young people to take up jobs in the environmental sector today. Its recommendations may therefore be of value to those involved in seeking to support sustainable impacts in terms of retention and employment in programmes such as the Groen Sebenza, and in the Groen Sebenza programme itself as it continues to unfold as a key job creation tool for unemployed youth. , Thesis (MEd) -- Faculty of Education, Education, 2021
- Full Text:
- Date Issued: 2021-10-29
African wildcats on unprotected land in the Northern Cape, South Africa: potential prey and conflict status
- Authors: Stadler, Cindy
- Date: 2021-10-29
- Subjects: African wildcat South Africa Northern Cape , African wildcat Effect of human beings on South Africa Northern Cape , Predation (Biology) South Africa Northern Cape , Livestock Predators of South Africa Northern Cape , Human-animal relationships South Africa Northern Cape
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10962/191012 , vital:45049
- Description: The African wildcat (Felis lybica cafra) is the most common and widely distributed of all wildcats. The southern Kalahari in South Africa offers favourable conditions for African wildcats and supports high wildcat densities on protected and unprotected land. African wildcats have been reported as livestock predators on South African farms, however wildcat-livestock predation is usually reported as infrequent and to have a low financial impact on the farmer. The aim of this study was, firstly, to determine what natural prey species were available for African wildcats on unprotected land and, secondly, to determine the extent of human-wildcat conflict on unprotected land in the southern Kalahari. The frequency of occurrence of potential African wildcat prey was determined through small mammal trapping, camera trap surveys and direct observations. The results indicated that a variety of the African wildcat’s natural prey species occurred on unprotected land and that the dune and adjacent ‘street' habitats most likely supported the majority of small mammals which are preferred prey for African wildcats. The African wildcat’s human-predator conflict status was determined through interview questionnaires (n = 22) with participants who owned or managed farms in the southern Kalahari. African wildcats were perceived to occur on 100% of farms, to be common in the region, to be the top livestock predator on 68% of farms and to be responsible for 46% (n = 1542 newborn lambs) of all livestock deaths in 2020. African wildcats were, however, not viewed in the same negative light as black-backed jackals (Canis mesomelas) and caracals (Caracal caracal), who received more negativity from participants and who had the highest persecution rates in my study area. This result could potentially be explained by a combination of generationally taught hatred towards certain species and due to the perceived livestock loss (e.g. livestock size and species) caused by each predator species. It is important to research and monitor wildcats outside protected areas to obtain a deeper knowledge of wildcat behaviour, abundance, population dynamics and other aspects of their ecology. By doing this, specific conservation and management questions can be addressed and through the knowledge of the natural history of a species, conservation failures can be avoided. , Thesis (MSc) -- Faculty of Science, Zoology and Entomology, 2021
- Full Text:
- Date Issued: 2021-10-29
- Authors: Stadler, Cindy
- Date: 2021-10-29
- Subjects: African wildcat South Africa Northern Cape , African wildcat Effect of human beings on South Africa Northern Cape , Predation (Biology) South Africa Northern Cape , Livestock Predators of South Africa Northern Cape , Human-animal relationships South Africa Northern Cape
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10962/191012 , vital:45049
- Description: The African wildcat (Felis lybica cafra) is the most common and widely distributed of all wildcats. The southern Kalahari in South Africa offers favourable conditions for African wildcats and supports high wildcat densities on protected and unprotected land. African wildcats have been reported as livestock predators on South African farms, however wildcat-livestock predation is usually reported as infrequent and to have a low financial impact on the farmer. The aim of this study was, firstly, to determine what natural prey species were available for African wildcats on unprotected land and, secondly, to determine the extent of human-wildcat conflict on unprotected land in the southern Kalahari. The frequency of occurrence of potential African wildcat prey was determined through small mammal trapping, camera trap surveys and direct observations. The results indicated that a variety of the African wildcat’s natural prey species occurred on unprotected land and that the dune and adjacent ‘street' habitats most likely supported the majority of small mammals which are preferred prey for African wildcats. The African wildcat’s human-predator conflict status was determined through interview questionnaires (n = 22) with participants who owned or managed farms in the southern Kalahari. African wildcats were perceived to occur on 100% of farms, to be common in the region, to be the top livestock predator on 68% of farms and to be responsible for 46% (n = 1542 newborn lambs) of all livestock deaths in 2020. African wildcats were, however, not viewed in the same negative light as black-backed jackals (Canis mesomelas) and caracals (Caracal caracal), who received more negativity from participants and who had the highest persecution rates in my study area. This result could potentially be explained by a combination of generationally taught hatred towards certain species and due to the perceived livestock loss (e.g. livestock size and species) caused by each predator species. It is important to research and monitor wildcats outside protected areas to obtain a deeper knowledge of wildcat behaviour, abundance, population dynamics and other aspects of their ecology. By doing this, specific conservation and management questions can be addressed and through the knowledge of the natural history of a species, conservation failures can be avoided. , Thesis (MSc) -- Faculty of Science, Zoology and Entomology, 2021
- Full Text:
- Date Issued: 2021-10-29
Aloe
- Authors: Sauls, Aloysius Albeus
- Date: 2021-10-29
- Subjects: Creative writing (Higher education) South Africa , Nama language , Nama poetry 21st century , Lyric poetry 21st century , Diaries Authorship , Lyric poetry History and criticism , Fiction History and criticism
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10962/190673 , vital:45017
- Description: My thesis, ‘Aloe’, isse poetry collection, wat focus op modern Khoekhoegowab. Die opgittiekkinne wēke van my Ancestry se mēnse van mēnse, |xam-poets: Diä!kwain, Kweiten-ta-ǁken, |a!kúnta, |Hanǂkass’o, en oek ǁKabbo, deērie Dytse filoloog, Wilhelm Bleek, dien asse guide, moerrie vēse gisoak in combinations van Ancient Indigenous, en modern Goema-klangke. Die purpose vannie collection is ommie use van Khoekhoegowab innie Afrikaans literature asse integral component te view, ennie iets foreign nie, diessèlle way wat Arabic, Indonesian, Malay en Dutch languages, die culture ennie language gishape en givorrim-it. Deēl vannie skryf-style wat ek employ in my thesis isse fusion vannie lyric poetry van Linton Kwesi Johnson, Gill Scott Heron ennie praāt-poems van Peter Snyders, oa. Music, assie primal connection toerrie past, speēlle central rōl in my wēk asse 21st-century Indigenous writer. Die thesis reference die works van veteran cultural en linguistic aātisse en lyrical poets; in echoes van marginalised en displaced creatives soes Tinariwen, wattie stōrie vannie Tuareg vocalise in woōdt en klang, ennie Chamorro poet, Craig Santos Perez van Guam, innie Western Pacific Ocean, wierrie indigenizing mandate se vlag lat wappe, bínne innie gisig vannie American presence daā. , Thesis (MA) -- Faculty of Humanities, School of Languages and Literatures, 2021
- Full Text:
- Date Issued: 2021-10-29
- Authors: Sauls, Aloysius Albeus
- Date: 2021-10-29
- Subjects: Creative writing (Higher education) South Africa , Nama language , Nama poetry 21st century , Lyric poetry 21st century , Diaries Authorship , Lyric poetry History and criticism , Fiction History and criticism
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10962/190673 , vital:45017
- Description: My thesis, ‘Aloe’, isse poetry collection, wat focus op modern Khoekhoegowab. Die opgittiekkinne wēke van my Ancestry se mēnse van mēnse, |xam-poets: Diä!kwain, Kweiten-ta-ǁken, |a!kúnta, |Hanǂkass’o, en oek ǁKabbo, deērie Dytse filoloog, Wilhelm Bleek, dien asse guide, moerrie vēse gisoak in combinations van Ancient Indigenous, en modern Goema-klangke. Die purpose vannie collection is ommie use van Khoekhoegowab innie Afrikaans literature asse integral component te view, ennie iets foreign nie, diessèlle way wat Arabic, Indonesian, Malay en Dutch languages, die culture ennie language gishape en givorrim-it. Deēl vannie skryf-style wat ek employ in my thesis isse fusion vannie lyric poetry van Linton Kwesi Johnson, Gill Scott Heron ennie praāt-poems van Peter Snyders, oa. Music, assie primal connection toerrie past, speēlle central rōl in my wēk asse 21st-century Indigenous writer. Die thesis reference die works van veteran cultural en linguistic aātisse en lyrical poets; in echoes van marginalised en displaced creatives soes Tinariwen, wattie stōrie vannie Tuareg vocalise in woōdt en klang, ennie Chamorro poet, Craig Santos Perez van Guam, innie Western Pacific Ocean, wierrie indigenizing mandate se vlag lat wappe, bínne innie gisig vannie American presence daā. , Thesis (MA) -- Faculty of Humanities, School of Languages and Literatures, 2021
- Full Text:
- Date Issued: 2021-10-29
An analysis of talent management practices of recently hired employees from the perspective of the psychological contract
- Authors: Bischoff, Olivia Edjegayhu
- Date: 2021-10-29
- Subjects: Gifted persons , Contracts Psychological aspects , Personnel management Psychological aspects , Breach of contract , Psychology, Industrial , Organizational behavior , Industrial relations , Employees Attitudes , Employee retention
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10962/191865 , vital:45173
- Description: This research took the form of an explanatory case study focused within a single organisation to evaluate talent management practices of recently hired employees from the perspective of the psychological contract. The theory underpinning this research is Resource-Based Theory (RBT) in the context of Talent Management. The research aims were: 1) to analyse how talent management practices have affected the psychological contract, 2) to analyse how employees have responded and intend to respond if there has been a breach in the contract and 3) to analyse how employees have responded or intend to respond where psychological contract expectations have been met. The key concepts identified include talent management and the psychological contract. The literature therefore expanded on talent management highlighting the importance of recruiting, attracting and retaining talent, especially in a global context where experience and skills are a source of competitive advantage. Following this, the concept of the psychological contract was used as a lens through which to analyse the experience of individuals, specifically focusing on new employees joining the organisation, to assess their socialisation and onboarding experience. The literature further explored the importance of focusing on new employees, as this is deemed by the literature as a critical time of transition in the shaping of the psychological contract. In further reviewing the literature regarding early onboarding, further review of the literature identified important components, including (1) socialisation and onboarding, (2) performance management and probation, (3) employee development and (4) work conditions. From reviewing the literature four propositions were deduced as follows: • Proposition 1: All integrative processes in early onboarding influence the initial psychological contract of the employee. Proposition 1 was further divided into three sub propositions as follows: Sub Proposition 1a) HR plays a key role in early onboarding, influencing the initial psychological contract; Sub Proposition 1b) Supervisor support plays a key role in early onboarding, influencing the initial psychological contract; and IV Sub Proposition 1c) The work team plays a key role in early onboarding, influencing the initial psychological contract. • Proposition 2 stated: Performance discussions influence the psychological contract. • Proposition 3: Employee development opportunities are a source of motivation in the fulfilment of the psychological contract. • Proposition 4: Employment conditions influence the fulfilment of the psychological contract. The research followed a qualitative approach, using deductive analysis to analyse the data collected from semi-structured interviews. The findings and discussion show that the propositions confirmed the literature and were relevant to the case study at hand. Where there was varying degree of experience regarding the effect of the influence or impact on the psychological contract this was noted and expanded on accordingly. The study also recognised the additional context that presented itself within the findings, namely the context of the COVID-19 pandemic. The research concludes in acknowledging the delimitations and limitations of the study while making suggestions for areas of future studies. To conclude, this research shows that the transition of a new employee in their early stages within the organisation is an opportunity to support in positively influencing and maintaining the psychological contract to support employee satisfaction and motivation. If organisations can also appreciate that the psychological contract is dynamic and can change over time based on changing circumstances or needs, then this can be proactively monitored to support long-term retention of talent. , Thesis (MBA) -- Faculty of Commerce, Rhodes Business School, 2021
- Full Text:
- Date Issued: 2021-10-29
- Authors: Bischoff, Olivia Edjegayhu
- Date: 2021-10-29
- Subjects: Gifted persons , Contracts Psychological aspects , Personnel management Psychological aspects , Breach of contract , Psychology, Industrial , Organizational behavior , Industrial relations , Employees Attitudes , Employee retention
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10962/191865 , vital:45173
- Description: This research took the form of an explanatory case study focused within a single organisation to evaluate talent management practices of recently hired employees from the perspective of the psychological contract. The theory underpinning this research is Resource-Based Theory (RBT) in the context of Talent Management. The research aims were: 1) to analyse how talent management practices have affected the psychological contract, 2) to analyse how employees have responded and intend to respond if there has been a breach in the contract and 3) to analyse how employees have responded or intend to respond where psychological contract expectations have been met. The key concepts identified include talent management and the psychological contract. The literature therefore expanded on talent management highlighting the importance of recruiting, attracting and retaining talent, especially in a global context where experience and skills are a source of competitive advantage. Following this, the concept of the psychological contract was used as a lens through which to analyse the experience of individuals, specifically focusing on new employees joining the organisation, to assess their socialisation and onboarding experience. The literature further explored the importance of focusing on new employees, as this is deemed by the literature as a critical time of transition in the shaping of the psychological contract. In further reviewing the literature regarding early onboarding, further review of the literature identified important components, including (1) socialisation and onboarding, (2) performance management and probation, (3) employee development and (4) work conditions. From reviewing the literature four propositions were deduced as follows: • Proposition 1: All integrative processes in early onboarding influence the initial psychological contract of the employee. Proposition 1 was further divided into three sub propositions as follows: Sub Proposition 1a) HR plays a key role in early onboarding, influencing the initial psychological contract; Sub Proposition 1b) Supervisor support plays a key role in early onboarding, influencing the initial psychological contract; and IV Sub Proposition 1c) The work team plays a key role in early onboarding, influencing the initial psychological contract. • Proposition 2 stated: Performance discussions influence the psychological contract. • Proposition 3: Employee development opportunities are a source of motivation in the fulfilment of the psychological contract. • Proposition 4: Employment conditions influence the fulfilment of the psychological contract. The research followed a qualitative approach, using deductive analysis to analyse the data collected from semi-structured interviews. The findings and discussion show that the propositions confirmed the literature and were relevant to the case study at hand. Where there was varying degree of experience regarding the effect of the influence or impact on the psychological contract this was noted and expanded on accordingly. The study also recognised the additional context that presented itself within the findings, namely the context of the COVID-19 pandemic. The research concludes in acknowledging the delimitations and limitations of the study while making suggestions for areas of future studies. To conclude, this research shows that the transition of a new employee in their early stages within the organisation is an opportunity to support in positively influencing and maintaining the psychological contract to support employee satisfaction and motivation. If organisations can also appreciate that the psychological contract is dynamic and can change over time based on changing circumstances or needs, then this can be proactively monitored to support long-term retention of talent. , Thesis (MBA) -- Faculty of Commerce, Rhodes Business School, 2021
- Full Text:
- Date Issued: 2021-10-29
An evaluation of the socio-economic costs and benefits of the invasive Rubus (Blackberry/Bramble) genus at selected sites in South Africa
- Authors: Mason, Brett Anthony
- Date: 2021-10-29
- Subjects: Rubus South Africa Cost effectiveness , Invasive plants South Africa Cost effectiveness , Rubus Economic aspects South Africa , Ecology Economic aspects South Africa , Rubus Ecology South Africa , Environmental economics South Africa
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10962/191931 , vital:45180
- Description: Rubus L. (brambles, blackberries, raspberries, or dewberries) are a globally recognised genus due to the edible fruit and negative impacts they can have as invasive species. There are at least 23 species of Rubus subgenus Rubus in South Africa. These include native, alien, naturalised alien, and invasive alien species. The invasive Rubus species are becoming an increasing problem in South Africa with experts in invasion biology urging caution regarding the genus (Henderson, 2011). The taxonomy of indigenous, alien and alien invasive species of Rubus are poorly understood and therefore efforts to understand the genus, the impacts and solutions to those impacts have been very limited (Stirton, 1981; Henderson, 2011; Sochor et al., 2018a). There has also been little research conducted on the economic or ecological impacts on the species or genus of species in South Africa (du Plessis et al., 1984; Botha, 2005), and yet species in the genus have been earmarked for prioritization by invasive species legislation. The potential value of certain species as well as the cost associated with their impacts could potentially create a complex conflict of interest scenario which has not been investigated. This study is an effort to inform future policy decisions regarding this suite of species by investigating the economic impacts of the invasive Rubus species. A method was developed unique to the study that incorporated research tools from environmental economics and geography to identify the nature of interactions between economic agents, experts, and alien and invasive Rubus species in South Africa. Two questionnaires were developed to generate economic data and ground proofing was used to develop geographic data. One questionnaire was directed specifically at researchers and academics that attended the 46th National Symposium on Biological Invasions that took place between 15–17 May 2019, at Waterval Country Lodge, Tulbagh and the other an economic agent questionnaire for economic agents that met strict and selective criteria relating to the impact of the six invasive Rubus species on their economic activity. Both questionnaires were designed with a mixed methods approach in mind. The ground proofing was aimed at understanding the composition and distribution of Rubus species at the selected sites: Cathcart and Hogsback (The Eastern Cape Province), Clarens (Free State Province), and Underberg (KwaZulu-Natal Province). The study established that all economic impacts of invasive Rubus species at selected sites are externalities. Invasive Rubus species in South Africa can be attributed as (i) harbouring vermin, (ii) impeding human and animal livestock, (iii) reducing crop yields, (iv) encroaching on grazing land, (v) presenting fire hazards, and (vi) negatively impacting fire regimes. These species also (i) provide berries that are retailed on a commercial level, or have been, (ii) that are utilized for personal consumption, (iii) provide an ingredient for alcohol brewing processes, and (iv) could potentially facilitate forest regeneration. The invasive species are infrequently browsed by certain livestock and far as we could ascertain do not provide ingredients for anti-inflammatory drugs or modern cosmetics in South Africa, as they do in other regions of the globe. The costs associated with the invasive species can be presented dichotomously; the estimated private cost-benefit ratio, for costs and benefits incurred or enjoyed by 18 private economic agents, stands at 0.33:1. A private-public benefit-cost ratio, that incorporates both private and public costs and benefits, stands at 13,5:1. The private-public benefit-cost includes public expenditure, or government control measures, directed at invasive Rubus and shifts the benefit-cost ratio so that costs now markedly dominate the estimated benefits. The benefits per hectare uncovered in this study stand at R13.14/ha. The private costs stand at R4.32/ha and a holistic cost, including both private and public expenditure, stands at R177,43/ha. The monetary values, when expressed per hectare, are misleading. This is due to a large standard deviation in the spread of benefits received. The benefits are enjoyed by a small number of the already small sample of respondents. The costs and benefits are not uniformly distributed across regions assessed. All benefits in this study accrue to economic agents in the Free State Province, whilst most of the costs accrued to economic agents in KwaZulu-Natal Province. The benefits appear to be primarily derived from an alien species, Rubus sect. Arguti. Management of the 6 species of invasive Rubus could be optimised by the prioritisation of those regions that incur the highest cost and derive the lowest benefit, in this case KwaZulu-Natal Province. Likewise, those regions with the highest benefits and lowest costs, the Free State Province, could provide sites for increased use and beneficiation of berries from invasive species. Management of individual species may prove difficult, given the similar morphologies, and thus, (i) either specialised training for those engaged in control must be instituted, (ii) all species of alien Rubus should be earmarked for management, or (iii) highly specific biocontrol agents for the most problematic species must be found. , Thesis (MEcon) -- Faculty of Commerce, Economics and Economic History, 2021
- Full Text:
- Date Issued: 2021-10-29
- Authors: Mason, Brett Anthony
- Date: 2021-10-29
- Subjects: Rubus South Africa Cost effectiveness , Invasive plants South Africa Cost effectiveness , Rubus Economic aspects South Africa , Ecology Economic aspects South Africa , Rubus Ecology South Africa , Environmental economics South Africa
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10962/191931 , vital:45180
- Description: Rubus L. (brambles, blackberries, raspberries, or dewberries) are a globally recognised genus due to the edible fruit and negative impacts they can have as invasive species. There are at least 23 species of Rubus subgenus Rubus in South Africa. These include native, alien, naturalised alien, and invasive alien species. The invasive Rubus species are becoming an increasing problem in South Africa with experts in invasion biology urging caution regarding the genus (Henderson, 2011). The taxonomy of indigenous, alien and alien invasive species of Rubus are poorly understood and therefore efforts to understand the genus, the impacts and solutions to those impacts have been very limited (Stirton, 1981; Henderson, 2011; Sochor et al., 2018a). There has also been little research conducted on the economic or ecological impacts on the species or genus of species in South Africa (du Plessis et al., 1984; Botha, 2005), and yet species in the genus have been earmarked for prioritization by invasive species legislation. The potential value of certain species as well as the cost associated with their impacts could potentially create a complex conflict of interest scenario which has not been investigated. This study is an effort to inform future policy decisions regarding this suite of species by investigating the economic impacts of the invasive Rubus species. A method was developed unique to the study that incorporated research tools from environmental economics and geography to identify the nature of interactions between economic agents, experts, and alien and invasive Rubus species in South Africa. Two questionnaires were developed to generate economic data and ground proofing was used to develop geographic data. One questionnaire was directed specifically at researchers and academics that attended the 46th National Symposium on Biological Invasions that took place between 15–17 May 2019, at Waterval Country Lodge, Tulbagh and the other an economic agent questionnaire for economic agents that met strict and selective criteria relating to the impact of the six invasive Rubus species on their economic activity. Both questionnaires were designed with a mixed methods approach in mind. The ground proofing was aimed at understanding the composition and distribution of Rubus species at the selected sites: Cathcart and Hogsback (The Eastern Cape Province), Clarens (Free State Province), and Underberg (KwaZulu-Natal Province). The study established that all economic impacts of invasive Rubus species at selected sites are externalities. Invasive Rubus species in South Africa can be attributed as (i) harbouring vermin, (ii) impeding human and animal livestock, (iii) reducing crop yields, (iv) encroaching on grazing land, (v) presenting fire hazards, and (vi) negatively impacting fire regimes. These species also (i) provide berries that are retailed on a commercial level, or have been, (ii) that are utilized for personal consumption, (iii) provide an ingredient for alcohol brewing processes, and (iv) could potentially facilitate forest regeneration. The invasive species are infrequently browsed by certain livestock and far as we could ascertain do not provide ingredients for anti-inflammatory drugs or modern cosmetics in South Africa, as they do in other regions of the globe. The costs associated with the invasive species can be presented dichotomously; the estimated private cost-benefit ratio, for costs and benefits incurred or enjoyed by 18 private economic agents, stands at 0.33:1. A private-public benefit-cost ratio, that incorporates both private and public costs and benefits, stands at 13,5:1. The private-public benefit-cost includes public expenditure, or government control measures, directed at invasive Rubus and shifts the benefit-cost ratio so that costs now markedly dominate the estimated benefits. The benefits per hectare uncovered in this study stand at R13.14/ha. The private costs stand at R4.32/ha and a holistic cost, including both private and public expenditure, stands at R177,43/ha. The monetary values, when expressed per hectare, are misleading. This is due to a large standard deviation in the spread of benefits received. The benefits are enjoyed by a small number of the already small sample of respondents. The costs and benefits are not uniformly distributed across regions assessed. All benefits in this study accrue to economic agents in the Free State Province, whilst most of the costs accrued to economic agents in KwaZulu-Natal Province. The benefits appear to be primarily derived from an alien species, Rubus sect. Arguti. Management of the 6 species of invasive Rubus could be optimised by the prioritisation of those regions that incur the highest cost and derive the lowest benefit, in this case KwaZulu-Natal Province. Likewise, those regions with the highest benefits and lowest costs, the Free State Province, could provide sites for increased use and beneficiation of berries from invasive species. Management of individual species may prove difficult, given the similar morphologies, and thus, (i) either specialised training for those engaged in control must be instituted, (ii) all species of alien Rubus should be earmarked for management, or (iii) highly specific biocontrol agents for the most problematic species must be found. , Thesis (MEcon) -- Faculty of Commerce, Economics and Economic History, 2021
- Full Text:
- Date Issued: 2021-10-29
An exploration of the mathematical learner identities of high school learners who participated in after school mathematics clubs in primary school
- Authors: Hokonya, Wellington Munetsi
- Date: 2021-10-29
- Subjects: Mathematics Study and teaching (Secondary) South Africa , Mathematics Study and teaching (Elementary) Activity programs South Africa , Identity (Psychology) in children , After-school programs South Africa , School children Attitudes , Mathematics Study and teaching Psychological aspects South Africa , South African Numeracy Chair Project (SANCP)
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10962/189985 , vital:44953 , 10.21504/10962/189985
- Description: This study focuses on understanding mathematics learner identities of high school learners who participated in the South African Numeracy Chair Project after school mathematics clubs, an environment that afforded different mathematics identities from the traditional South African classroom. Mathematics learner identities feature prominently in current research on mathematics education because they affect whether and how learners engage in mathematics. They play a critical role in enhancing (or detracting from) learners’ attitudes, dispositions, emotional development, and general sense of self as they learn mathematics. Development of positive learner mathematical identity is therefore useful in making learners commit to their mathematics work. South African primary mathematics education is described as being in a state of crisis, and various programmes are being implemented to develop intervention models to improve quality and ensure the effective teaching and learning of primary mathematics. The South African Numeracy Chair Project initiative at Rhodes University provides for longitudinal research and development programmes with primary mathematics teachers and learners from previously disadvantaged schools, in order to find ways of mitigating the crisis. The after school mathematics clubs provide extra-curricular activities focused on developing a supportive learning community where learners’ active mathematical participation, engagement, enjoyment, and sense making are the focus. The clubs provide a supportive learning environment that is different to the traditional classroom and in which learners can participate actively and freely in mathematical activities. The study explores the nature of mathematics learner identities as learning trajectories that connect the past and future in negotiation of the present. It also seeks to discover how primary school club participation and experiences feature in the learners’ mathematical identities. The study employs two theoretical frameworks to analyse qualitative data that was gathered in the form of spoken and written stories, by 14 learners who participated in the after school mathematics clubs in primary school. The stories covered learners’ engagement in mathematics in different landscapes of practice that promoted the construction of different learner mathematical identities. A close analysis of the qualitative data revealed that learners’ mathematical identities are heavily influenced by the values that were foregrounded in the after school mathematics clubs. The clubs valued hard work and encouraged learners to ask for assistance when in doubt. In line with the club ethos, the learners storied resilience and hard work in their narratives. In addition, although many learners storied Mathematics as difficult in high school, they chose to continue taking the subject. , Thesis (PhD) -- Faculty of Education, Education, 2021
- Full Text:
- Date Issued: 2021-10-29
- Authors: Hokonya, Wellington Munetsi
- Date: 2021-10-29
- Subjects: Mathematics Study and teaching (Secondary) South Africa , Mathematics Study and teaching (Elementary) Activity programs South Africa , Identity (Psychology) in children , After-school programs South Africa , School children Attitudes , Mathematics Study and teaching Psychological aspects South Africa , South African Numeracy Chair Project (SANCP)
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10962/189985 , vital:44953 , 10.21504/10962/189985
- Description: This study focuses on understanding mathematics learner identities of high school learners who participated in the South African Numeracy Chair Project after school mathematics clubs, an environment that afforded different mathematics identities from the traditional South African classroom. Mathematics learner identities feature prominently in current research on mathematics education because they affect whether and how learners engage in mathematics. They play a critical role in enhancing (or detracting from) learners’ attitudes, dispositions, emotional development, and general sense of self as they learn mathematics. Development of positive learner mathematical identity is therefore useful in making learners commit to their mathematics work. South African primary mathematics education is described as being in a state of crisis, and various programmes are being implemented to develop intervention models to improve quality and ensure the effective teaching and learning of primary mathematics. The South African Numeracy Chair Project initiative at Rhodes University provides for longitudinal research and development programmes with primary mathematics teachers and learners from previously disadvantaged schools, in order to find ways of mitigating the crisis. The after school mathematics clubs provide extra-curricular activities focused on developing a supportive learning community where learners’ active mathematical participation, engagement, enjoyment, and sense making are the focus. The clubs provide a supportive learning environment that is different to the traditional classroom and in which learners can participate actively and freely in mathematical activities. The study explores the nature of mathematics learner identities as learning trajectories that connect the past and future in negotiation of the present. It also seeks to discover how primary school club participation and experiences feature in the learners’ mathematical identities. The study employs two theoretical frameworks to analyse qualitative data that was gathered in the form of spoken and written stories, by 14 learners who participated in the after school mathematics clubs in primary school. The stories covered learners’ engagement in mathematics in different landscapes of practice that promoted the construction of different learner mathematical identities. A close analysis of the qualitative data revealed that learners’ mathematical identities are heavily influenced by the values that were foregrounded in the after school mathematics clubs. The clubs valued hard work and encouraged learners to ask for assistance when in doubt. In line with the club ethos, the learners storied resilience and hard work in their narratives. In addition, although many learners storied Mathematics as difficult in high school, they chose to continue taking the subject. , Thesis (PhD) -- Faculty of Education, Education, 2021
- Full Text:
- Date Issued: 2021-10-29
Baseline description of the Benthic Biotopes for two Long-Term Ecological Research (LTER) stations in Algoa Bay, Agulhas ecoregion, South Africa
- Authors: Parker-Nance, Shirley
- Date: 2021-10-29
- Subjects: Benthic ecology South Africa Algoa Bay , Long-Term Ecological Research Program , Marine invertebrates South Africa Algoa Bay , Reef ecology South Africa Algoa Bay , Coastal zone management South Africa Algoa Bay , Reef fishes South Africa Algoa Bay , Ecological mapping South Africa Algoa Bay
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10962/191680 , vital:45147 , 10.21504/10962/191680
- Description: Shallow coastal marine ecosystems provide important resources to society but are increasingly under threat from anthropogenic impacts. These systems form an interface between land and sea, providing valuable resources. Global environmental change, overexploitation, habitat transformation, pollution and policies aimed at short-term socio-economic gains are driving the loss of natural resources, productivity and biodiversity. Consequently, a comprehensive and holistic understanding of the current and future states of marine ecosystems is essential. This requires insight into the processes involved in maintaining genetic, species, habitat, community and biotope diversity at an ecosystem level. An understanding of ecosystem processes and the ability to detect changes in biodiversity, biotopes, seascape composition and ecosystem functioning require observation made over time and space. In response to this need, Long-Term Ecological Research (LTER) programmes such as those established by the South African Environmental Observation Network (SAEON) supported by the Department of Science and Innovation’s (DSI) Shallow Marine and Coastal Research Infrastructure (SMCRI) collect long–term observational data from different environments and systems. This study aimed to evaluate data collected as part of the developmental phase of a newly established benthic research platform. The datasets constructed are used to develop a baseline description of the benthic biotopes of two study areas within Algoa Bay. It aimed to gain insight into the feasibility of the methods used and the value of the data and derived essential biological variables (EVB). Assessing the sustainability of the programme over time was done through a practical evaluation of the methodology to be used and the technical feasibility of data collection and analysis. It furthermore aimed to assess the data usefulness in describing biodiversity at various scales and its sensitivity in reporting change. This pilot study provides valuable insight into data collection methodologies and introduces new sampling platforms. The baseline dataset consisted of data collected during the first 18 months of the SAEON Benthic Ecosystem Long-Term Ecological Research (BELTER) platform in Algoa Bay, Agulhas ecoregion, Western Indian Ocean, South Africa. This comprised of the collection of images for 150 m2 of the researched benthic seascape and 306 stereo video data streams. The 77 760 point dataset allowed the identification of 12 substrate types, 7 biotopes, 44 sub-biotope units, 377 sessile and sedentary benthic species and 51 ichthyofauna species. The described habitat and benthic communities and the defined benthic biotopes allowed for the assessment of biotope heterogeneity and the construction of a provisional distribution map for the broader biotopes. This work includes a study into the infra- and supra-benthic ichthyofauna associated with the defined biotopes and investigates the role habitat and benthic communities play in the distribution of these fish 3 assemblages. Lastly, it assesses the value of morphological traits and diversity indices for describing and comparing abiotic and biotic components of observed systems within the shallow coastal marine seascape. This study shows that species composition differs significantly between biotopes with habitat type playing a key role in the composition of the benthos. Substrate type, consolidated or unconsolidated, depth and the composition of the soft sediment is the most important determining factors. The White Sands Reef station has a higher species diversity than the St Croix Island Complex station with a higher percentage cover associated with the hard substrate. The dissimilarity between biotopes and communities are generally high although similarity within the biotopes or communities was found to be relatively low. This was considered indicative of high heterogeneity within the biotopes and a patch or mosaic-like distribution of communities within the broader biotope. A fine-scale a posteriori analysis of the data collected confirmed the high heterogeneous nature of both habitat and communities within the broader biotope. The description of the abiotic and biotic variables resulted in the identification of a diverse suite of biotope subunits. The character of the biotope hinges not only on the composition of the substrate and biota present but the contribution of smaller distinct biotopes subunits, their distribution and representation within broader biotopes and the degree these are shared with other broader biotopes. The distribution of these biotope units at different scales is believed to be important in understanding inherent diversity, niche partitioning and connectivity within a highly heterogeneous seascape. Ichthyofauna associated with the broader biotopes were indicative of the substrate type. Low profile reef systems with interspaced sandy stretches supported both reef fish and those typically associated with sandy substrates. Benthic biotopes associated characteristically with higher profile reef systems and less sand or soft sediment were mainly utilized by reef-associated fish species. Substrate type, depth and seasonality were found to be important factors in the observed composition and distribution of ichthyofauna over the seascape. Although fish species were found to have a wide distribution and made use of multiple biotopes the average abundance of the species within the observed assemblages differed. Analysis of ichthyofauna species composition indicated that observed fish assemblages were homogeneous within five of the seven biotopes. Broader biotopes that were found to be significantly different between sample locations are characterised by a diverse complement of biotope subunits and are highly heterogeneous. Traits and diversity indices are important tools for assessing and comparing different systems within the seascape, both spatially and temporally. The classification of the biota into broader phylogenetic groups indicated a significant difference between biotopes. This is especially useful when detailed 4 analysis or species identification is not possible or the skill set is not available. Morphological traits included in this study informed on the physical structure of the communities present and in combination with substrate type provided insight into the three-dimensional structure of the biotope. Species diversity, abundance, density estimates and the Shannon-Weiner diversity index were found to be the most useful diversity indices characterising and comparing biotopes. This was less so for ichthyofauna. Significant differences in the number of species observed were evident only between consolidated and unconsolidated dominated substrates. Although there was no significant difference in the number of individuals observed, both the Shannon-Weiner and Simpson Diversity indices were able to highlight differences in the fish assemblages observed for the different biotopes. The data collected, although permitting a comprehensive baseline assessment of the benthic environment for two research stations within the SAEON Algoa Bay LTER Sentinel Site, is temporally limited. The ichthyofauna dataset used was small and it is understood that the addition of length-frequency analysis of observed ichthyofauna will benefit our understanding of the biotope use by infra- and supra-benthic fish species over their life history within the larger seascape. Seasonal differences were evident and it is expected that datasets spanning several years, including LTER stations within different marine ecosystems types, will provide valuable insights on system dynamics in the short and long term both spatially and temporally. This study is the first attempt to evaluate the methodology developed and data collected in the South African Environmental Observation Network’s, Elwandle Coastal Node as part of the Shallow Marine and Coastal Research Infrastructure Benthic Ecosystem Long-Term Ecological Research (BELTER) platform. Newly designed and developed sample equipment and a sampling regime allowed for the collection of data on a long-term basis. The study was successful in the description of the biotope and biotope subunits for two research stations in Algoa Bay. It permitted the construction of comprehensive species lists for both benthic sessile and sedentary biota and the associated ichthyofauna. The subset of data used was successful in reporting on both spatial and temporal change. This work demonstrates that in the absence of detailed species identifications, traits may be used to describe habitat and community structure and report on abiotic and biotic biotope characteristics. This study furthermore allowed for the comparison of a comprehensive suite of diversity indices highlighting indices that may be especially useful in routine BELTER reporting. , Thesis (PhD) -- Faculty of Science, Ichthyology and Fisheries Science, 2021
- Full Text:
- Date Issued: 2021-10-29
- Authors: Parker-Nance, Shirley
- Date: 2021-10-29
- Subjects: Benthic ecology South Africa Algoa Bay , Long-Term Ecological Research Program , Marine invertebrates South Africa Algoa Bay , Reef ecology South Africa Algoa Bay , Coastal zone management South Africa Algoa Bay , Reef fishes South Africa Algoa Bay , Ecological mapping South Africa Algoa Bay
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10962/191680 , vital:45147 , 10.21504/10962/191680
- Description: Shallow coastal marine ecosystems provide important resources to society but are increasingly under threat from anthropogenic impacts. These systems form an interface between land and sea, providing valuable resources. Global environmental change, overexploitation, habitat transformation, pollution and policies aimed at short-term socio-economic gains are driving the loss of natural resources, productivity and biodiversity. Consequently, a comprehensive and holistic understanding of the current and future states of marine ecosystems is essential. This requires insight into the processes involved in maintaining genetic, species, habitat, community and biotope diversity at an ecosystem level. An understanding of ecosystem processes and the ability to detect changes in biodiversity, biotopes, seascape composition and ecosystem functioning require observation made over time and space. In response to this need, Long-Term Ecological Research (LTER) programmes such as those established by the South African Environmental Observation Network (SAEON) supported by the Department of Science and Innovation’s (DSI) Shallow Marine and Coastal Research Infrastructure (SMCRI) collect long–term observational data from different environments and systems. This study aimed to evaluate data collected as part of the developmental phase of a newly established benthic research platform. The datasets constructed are used to develop a baseline description of the benthic biotopes of two study areas within Algoa Bay. It aimed to gain insight into the feasibility of the methods used and the value of the data and derived essential biological variables (EVB). Assessing the sustainability of the programme over time was done through a practical evaluation of the methodology to be used and the technical feasibility of data collection and analysis. It furthermore aimed to assess the data usefulness in describing biodiversity at various scales and its sensitivity in reporting change. This pilot study provides valuable insight into data collection methodologies and introduces new sampling platforms. The baseline dataset consisted of data collected during the first 18 months of the SAEON Benthic Ecosystem Long-Term Ecological Research (BELTER) platform in Algoa Bay, Agulhas ecoregion, Western Indian Ocean, South Africa. This comprised of the collection of images for 150 m2 of the researched benthic seascape and 306 stereo video data streams. The 77 760 point dataset allowed the identification of 12 substrate types, 7 biotopes, 44 sub-biotope units, 377 sessile and sedentary benthic species and 51 ichthyofauna species. The described habitat and benthic communities and the defined benthic biotopes allowed for the assessment of biotope heterogeneity and the construction of a provisional distribution map for the broader biotopes. This work includes a study into the infra- and supra-benthic ichthyofauna associated with the defined biotopes and investigates the role habitat and benthic communities play in the distribution of these fish 3 assemblages. Lastly, it assesses the value of morphological traits and diversity indices for describing and comparing abiotic and biotic components of observed systems within the shallow coastal marine seascape. This study shows that species composition differs significantly between biotopes with habitat type playing a key role in the composition of the benthos. Substrate type, consolidated or unconsolidated, depth and the composition of the soft sediment is the most important determining factors. The White Sands Reef station has a higher species diversity than the St Croix Island Complex station with a higher percentage cover associated with the hard substrate. The dissimilarity between biotopes and communities are generally high although similarity within the biotopes or communities was found to be relatively low. This was considered indicative of high heterogeneity within the biotopes and a patch or mosaic-like distribution of communities within the broader biotope. A fine-scale a posteriori analysis of the data collected confirmed the high heterogeneous nature of both habitat and communities within the broader biotope. The description of the abiotic and biotic variables resulted in the identification of a diverse suite of biotope subunits. The character of the biotope hinges not only on the composition of the substrate and biota present but the contribution of smaller distinct biotopes subunits, their distribution and representation within broader biotopes and the degree these are shared with other broader biotopes. The distribution of these biotope units at different scales is believed to be important in understanding inherent diversity, niche partitioning and connectivity within a highly heterogeneous seascape. Ichthyofauna associated with the broader biotopes were indicative of the substrate type. Low profile reef systems with interspaced sandy stretches supported both reef fish and those typically associated with sandy substrates. Benthic biotopes associated characteristically with higher profile reef systems and less sand or soft sediment were mainly utilized by reef-associated fish species. Substrate type, depth and seasonality were found to be important factors in the observed composition and distribution of ichthyofauna over the seascape. Although fish species were found to have a wide distribution and made use of multiple biotopes the average abundance of the species within the observed assemblages differed. Analysis of ichthyofauna species composition indicated that observed fish assemblages were homogeneous within five of the seven biotopes. Broader biotopes that were found to be significantly different between sample locations are characterised by a diverse complement of biotope subunits and are highly heterogeneous. Traits and diversity indices are important tools for assessing and comparing different systems within the seascape, both spatially and temporally. The classification of the biota into broader phylogenetic groups indicated a significant difference between biotopes. This is especially useful when detailed 4 analysis or species identification is not possible or the skill set is not available. Morphological traits included in this study informed on the physical structure of the communities present and in combination with substrate type provided insight into the three-dimensional structure of the biotope. Species diversity, abundance, density estimates and the Shannon-Weiner diversity index were found to be the most useful diversity indices characterising and comparing biotopes. This was less so for ichthyofauna. Significant differences in the number of species observed were evident only between consolidated and unconsolidated dominated substrates. Although there was no significant difference in the number of individuals observed, both the Shannon-Weiner and Simpson Diversity indices were able to highlight differences in the fish assemblages observed for the different biotopes. The data collected, although permitting a comprehensive baseline assessment of the benthic environment for two research stations within the SAEON Algoa Bay LTER Sentinel Site, is temporally limited. The ichthyofauna dataset used was small and it is understood that the addition of length-frequency analysis of observed ichthyofauna will benefit our understanding of the biotope use by infra- and supra-benthic fish species over their life history within the larger seascape. Seasonal differences were evident and it is expected that datasets spanning several years, including LTER stations within different marine ecosystems types, will provide valuable insights on system dynamics in the short and long term both spatially and temporally. This study is the first attempt to evaluate the methodology developed and data collected in the South African Environmental Observation Network’s, Elwandle Coastal Node as part of the Shallow Marine and Coastal Research Infrastructure Benthic Ecosystem Long-Term Ecological Research (BELTER) platform. Newly designed and developed sample equipment and a sampling regime allowed for the collection of data on a long-term basis. The study was successful in the description of the biotope and biotope subunits for two research stations in Algoa Bay. It permitted the construction of comprehensive species lists for both benthic sessile and sedentary biota and the associated ichthyofauna. The subset of data used was successful in reporting on both spatial and temporal change. This work demonstrates that in the absence of detailed species identifications, traits may be used to describe habitat and community structure and report on abiotic and biotic biotope characteristics. This study furthermore allowed for the comparison of a comprehensive suite of diversity indices highlighting indices that may be especially useful in routine BELTER reporting. , Thesis (PhD) -- Faculty of Science, Ichthyology and Fisheries Science, 2021
- Full Text:
- Date Issued: 2021-10-29
Biodiversity conservation of South Africa’s Wild Coast through the years: Exploring the tensions between western-style and local traditional conservation practices
- Authors: De Villiers, Deon Johan
- Date: 2021-10-29
- Subjects: Biodiversity conservation South Africa Eastern Cape , Political ecology South Africa Eastern Cape , Dwesa Nature Reserve (South Africa) , Mkambati Nature Reserve (South Africa) , Hluleka Nature Reserve (South Africa) , Environmental policy South Africa , Natural resources Co-management South Africa Eastern Cape , Land use Environmental aspects South Africa Eastern Cape
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10962/190646 , vital:45013 , 10.21504/10962/190646
- Description: The Transkei Wild Coast is a unique and diverse biophysical environment stretching some 280 kilometres between the Great Kei and Mtamvuna Rivers along South Africa’s eastern coastline. Its extensive indigenous forests were recognised for their biological and economic importance by the colonial government and granted protection from the late 1800s, with forced removal of indigenous people who resided within them. The state restricted and controlled the utilisation of the forest resources, particularly by Black people, through promulgation and enforcement of legislation. Similar conservation methods were employed for protection of the Wild Coast’s soils, grasslands and marine resources, usually without any consultation with local Black leadership or communities who relied upon these resources. Previous studies have focussed on the impacts of Western-style conservation legislation and the promulgation of protected areas on local people. These have suggested that local communities have been denied access to natural resources through a fences and fines approach, often accompanied by heavy-handed, strict law enforcement measures. Very little research has been conducted to document the actual reasons for and the history of conservation efforts along the Wild Coast. The aim of this study was to explore the history of natural resource management and conservation along the Wild Coast from a Western and African perspective, and to examine the conflicts that have arisen as a result thereof. The importance of utilisation of natural resources to sustain livelihoods and the conservation methods applied to protect these resources were examined, mainly by means of a literature review and face-to-face interviews with local traditional leaders and environmental managers. The successes, challenges and conflicts that resulted from conservation efforts were examined through detailed analysis of the conservation history of three case study areas: Dwesa-Cwebe, Hluleka and Mkambati nature reserves. The study concludes that traditional leaders, foresters and conservation managers have largely been ignored during previous research on management and conservation of the Wild Coast; however, they were very eager to express their views on this subject. The interviews revealed that traditional leaders and conservationists from each case study area want to protect the Wild Coast and its natural resources, albeit for different reasons. Conservationists recognise the importance of the region’s biodiversity and the need for protected areas, particularly where there is rich endemism such as at Mkambati and Dwesa-Cwebe. Traditional leaders recognise the potential for jobs for their people where protected areas preserve the aesthetic beauty of the coast and attract tourists. For them, employment opportunities are a priority, as is access to utilisation of natural resources to sustain livelihoods. The traditional customs and culture of the people living along the Wild Coast are also seen as being of critical importance. This has not been adequately considered by past conservation planners and managers, but traditional leaders express value in conserving the amaXhosa and amaMpondo way of life. Nowhere is this more evident than in relation to grazing land for cattle. Another significant finding is that the support shown by traditional leaders for conservation of the terrestrial environment is not necessarily mirrored when it comes to protection of marine resources. The Wild Coast has a rich variety of marine flora and fauna and a high percentage of endemic species. Local people have relied upon marine resources for sustenance, but conservationists acknowledge that access to these resources has historically been restricted without consultation with traditional leaders or local communities. It is concluded that these restrictions can be linked to many land claims on protected areas on the Wild Coast since 1994. While this study suggests that both traditional leaders and conservationists want to protect the Wild Coast and its natural resources, there is still mistrust based on a history of unjust forced removals from forests, restrictions on the use of natural resources through the manifestation of colonial and apartheid power, and broken promises relating to benefit sharing from proceeds of wildlife and tourism ventures, as well as those benefits linked to land claim settlement agreements in the post-apartheid era. The study concludes that, despite past conflicts relating to conservation management, the Wild Coast’s protected areas have widespread support amongst traditional leaders. There is agreement that co-management is the preferred option but the state has to assist in curbing lawlessness that threatens over-exploitation of natural resources. It is largely acknowledged by conservationists that local people should be permitted to sustainably use certain natural resources and that there have to be increased economic benefits from tourism. Although protected area managers cannot be expected to carry the responsibility of failed tourism models and economic ventures on nature reserves, this study found that they are often the only government officials available on the ground for traditional leaders and local communities to consult with. For co-management to be successful on the protected areas, regular communication about all matters pertaining to management is considered important. While it is accepted that traditional leaders no longer have the administrative powers that they historically possessed, the study found that they are still widely respected along the Wild Coast. It is therefore concluded that regular consultation between environmental managers and traditional leaders is essential for the future conservation of the Wild Coast. , Thesis (PhD) -- Faculty of Science, Geography, 2021
- Full Text:
- Date Issued: 2021-10-29
- Authors: De Villiers, Deon Johan
- Date: 2021-10-29
- Subjects: Biodiversity conservation South Africa Eastern Cape , Political ecology South Africa Eastern Cape , Dwesa Nature Reserve (South Africa) , Mkambati Nature Reserve (South Africa) , Hluleka Nature Reserve (South Africa) , Environmental policy South Africa , Natural resources Co-management South Africa Eastern Cape , Land use Environmental aspects South Africa Eastern Cape
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10962/190646 , vital:45013 , 10.21504/10962/190646
- Description: The Transkei Wild Coast is a unique and diverse biophysical environment stretching some 280 kilometres between the Great Kei and Mtamvuna Rivers along South Africa’s eastern coastline. Its extensive indigenous forests were recognised for their biological and economic importance by the colonial government and granted protection from the late 1800s, with forced removal of indigenous people who resided within them. The state restricted and controlled the utilisation of the forest resources, particularly by Black people, through promulgation and enforcement of legislation. Similar conservation methods were employed for protection of the Wild Coast’s soils, grasslands and marine resources, usually without any consultation with local Black leadership or communities who relied upon these resources. Previous studies have focussed on the impacts of Western-style conservation legislation and the promulgation of protected areas on local people. These have suggested that local communities have been denied access to natural resources through a fences and fines approach, often accompanied by heavy-handed, strict law enforcement measures. Very little research has been conducted to document the actual reasons for and the history of conservation efforts along the Wild Coast. The aim of this study was to explore the history of natural resource management and conservation along the Wild Coast from a Western and African perspective, and to examine the conflicts that have arisen as a result thereof. The importance of utilisation of natural resources to sustain livelihoods and the conservation methods applied to protect these resources were examined, mainly by means of a literature review and face-to-face interviews with local traditional leaders and environmental managers. The successes, challenges and conflicts that resulted from conservation efforts were examined through detailed analysis of the conservation history of three case study areas: Dwesa-Cwebe, Hluleka and Mkambati nature reserves. The study concludes that traditional leaders, foresters and conservation managers have largely been ignored during previous research on management and conservation of the Wild Coast; however, they were very eager to express their views on this subject. The interviews revealed that traditional leaders and conservationists from each case study area want to protect the Wild Coast and its natural resources, albeit for different reasons. Conservationists recognise the importance of the region’s biodiversity and the need for protected areas, particularly where there is rich endemism such as at Mkambati and Dwesa-Cwebe. Traditional leaders recognise the potential for jobs for their people where protected areas preserve the aesthetic beauty of the coast and attract tourists. For them, employment opportunities are a priority, as is access to utilisation of natural resources to sustain livelihoods. The traditional customs and culture of the people living along the Wild Coast are also seen as being of critical importance. This has not been adequately considered by past conservation planners and managers, but traditional leaders express value in conserving the amaXhosa and amaMpondo way of life. Nowhere is this more evident than in relation to grazing land for cattle. Another significant finding is that the support shown by traditional leaders for conservation of the terrestrial environment is not necessarily mirrored when it comes to protection of marine resources. The Wild Coast has a rich variety of marine flora and fauna and a high percentage of endemic species. Local people have relied upon marine resources for sustenance, but conservationists acknowledge that access to these resources has historically been restricted without consultation with traditional leaders or local communities. It is concluded that these restrictions can be linked to many land claims on protected areas on the Wild Coast since 1994. While this study suggests that both traditional leaders and conservationists want to protect the Wild Coast and its natural resources, there is still mistrust based on a history of unjust forced removals from forests, restrictions on the use of natural resources through the manifestation of colonial and apartheid power, and broken promises relating to benefit sharing from proceeds of wildlife and tourism ventures, as well as those benefits linked to land claim settlement agreements in the post-apartheid era. The study concludes that, despite past conflicts relating to conservation management, the Wild Coast’s protected areas have widespread support amongst traditional leaders. There is agreement that co-management is the preferred option but the state has to assist in curbing lawlessness that threatens over-exploitation of natural resources. It is largely acknowledged by conservationists that local people should be permitted to sustainably use certain natural resources and that there have to be increased economic benefits from tourism. Although protected area managers cannot be expected to carry the responsibility of failed tourism models and economic ventures on nature reserves, this study found that they are often the only government officials available on the ground for traditional leaders and local communities to consult with. For co-management to be successful on the protected areas, regular communication about all matters pertaining to management is considered important. While it is accepted that traditional leaders no longer have the administrative powers that they historically possessed, the study found that they are still widely respected along the Wild Coast. It is therefore concluded that regular consultation between environmental managers and traditional leaders is essential for the future conservation of the Wild Coast. , Thesis (PhD) -- Faculty of Science, Geography, 2021
- Full Text:
- Date Issued: 2021-10-29
Continuing teacher professional development in the Environment Sector: A case study of Fundisa for Change continuing teacher professional development programme
- Authors: Nkhahle, Lebona Jerome
- Date: 2021-10-29
- Subjects: Environmental education South Africa , Pedagogical content knowledge , Teachers In-service training South Africa , Curriculum-based assessment South Africa , Fundisa for Change , Practice Architectures
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10962/192724 , vital:45254 , 10.21504/10962/192724
- Description: The importance of teachers being engaged in professional development initiatives is widely acknowledged in the literature and in most cases these initiatives are largely focused on addressing teachers’ lack of subject content knowledge. The problem of teachers having inadequate environmental knowledge is common in South Africa due to the fact that much of the environmental content knowledge in the curriculum is new, and environmental education itself is a new field. This is an area of interest in South Africa as a third iteration of the post-apartheid curriculum, the Curriculum and Assessment Policy Statement (CAPS) has recently been introduced into schools and many subjects have environmental learning content. Inadequate subject content knowledge influences teachers’ abilities to choose appropriate teaching and assessment methods and this might negatively affect the process of teaching and learning. Knowledgeable teachers are needed to help learners understand the current issues affecting citizens, and in particular, environmental issues, which form the focus of this study. The main research questions addressed are: 1. What are the teachers’ experiences of the Fundisa for Change continuing teacher professional development programme in relation to environment and sustainability content knowledge? 2. How does the Fundisa for Change continuing teacher professional development programme influence teachers’ practice? 3. What practices of the Fundisa for Change teacher professional development programme are characteristic of effective continuing teacher professional development initiatives? 4. How are (if at all) the practices of teacher training, teacher learning, teaching and assessment of Biodiversity content in CAPS living practices? This work was conducted as a qualitative case study and it was carried out in the provinces of Gauteng, Eastern Cape and Mpumalanga in South Africa. It included four teachers from the Eastern Cape and five from Mpumalanga. Seven teacher trainers also participated, two of which were based in Gauteng and the rest in the Eastern Cape. Data were generated through interviews and document analysis, and included analysis of teacher portfolios showing evidence of classroom practice. The study explored teachers’ experiences of an environmental education training programme called ‘Fundisa for Change’, which has been set up as a national partnership initiative to strengthen teachers’ environmental knowledge and teaching skills in order to address the above-mentioned problem. It focused on training teachers in the Life Sciences, particularly on new content knowledge on Biodiversity, and on teaching and assessment skills. It also looked into how the training influenced teaching practice. The study worked with practice theory, in particular Kemmis and Grootenboer’s (2008) theory of practice architectures, to look at the sayings, doings and relatings pertaining to the teaching of Biodiversity, and the enabling and constraining of this practice. The features and the teachers’ experiences of the Fundisa for Change professional development programme have been presented and explained. The study also used the ecologies of practices theory to describe the living nature of practices. The following are the key findings: • The Fundisa for Change programme improved the participating teachers’ Biodiversity content knowledge, teaching and assessment skills. • Practices of the Fundisa for Change teacher professional development programme characteristic of effective continuing teacher professional development initiatives are: duration; active involvement of teachers; providing teachers with subject content knowledge; promoting establishment of professional learning communities; coherence; follow-up; and assessment of teachers. • The conditions that affect the participating teachers’ teaching practice are: the use of language (both scientific and instructional); infrastructure (availability of computer laboratories, science laboratories, extra classrooms and libraries); teaching and learning support materials including laboratory apparatus; class size; and policies. • The Fundisa for Change programme encourages teachers to improvise and use the local environment in their teaching to try to tackle the problem of lack of funds and equipment. • Teaching Biodiversity practice is ‘living’ as it is characterised by the principles of living ecologies. Recommendations based on the findings are: • There is a need for more teacher training by Fundisa for Change and other organisations whose training activities are SACE approved to cater for more teachers. • A more structured plan of action from the Department of Basic Education (DBE) is needed to assist and involve more organisations and stakeholders. • Provision of infrastructure and teaching and learning resource materials to schools by the DBE needs to be accelerated as it is legally binding. • Follow-up should be formally incorporated into Fundisa for Change programme activities. • Formation of professional learning communities is very important to help new teachers as there is no formal induction programme in South Africa. • An induction policy by the DBE needs to be formulated to help establish an induction programme for newly qualified teachers. Recommendations for further research are: • Use of lesson observation for data collection to improve results. • A larger sample could be used to expand the insights gained in this study. • Fundisa for Change practices can be studied at the level of teacher professional development practices. • Other modes of teacher professional development initiatives such as Lesson Study can be tested out to overcome the challenge of teachers not wanting to be observed. • More research can be carried out on the practices of teacher training, teacher learning, student learning and assessment, as practices associated with teaching Biodiversity. The study was important in that it gave an understanding of what makes continuing teacher professional development initiatives effective. The study also looked at teaching Biodiversity through the use of contemporary forms of a practice theory which are the theory of practice architectures and the theory of the ecologies of practices. This provided understandings into how professional development programmes are experienced in practice, and showed that though the teachers were trained and positive benefits accrued, there are factors which enable or constrain their actual teaching Biodiversity practice. The study also showed that practices are interrelated in ecologies of practices. These factors need to be considered in professional development programming. , Thesis (PhD) -- Faculty of Education, Education, 2021
- Full Text:
- Date Issued: 2021-10-29
- Authors: Nkhahle, Lebona Jerome
- Date: 2021-10-29
- Subjects: Environmental education South Africa , Pedagogical content knowledge , Teachers In-service training South Africa , Curriculum-based assessment South Africa , Fundisa for Change , Practice Architectures
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10962/192724 , vital:45254 , 10.21504/10962/192724
- Description: The importance of teachers being engaged in professional development initiatives is widely acknowledged in the literature and in most cases these initiatives are largely focused on addressing teachers’ lack of subject content knowledge. The problem of teachers having inadequate environmental knowledge is common in South Africa due to the fact that much of the environmental content knowledge in the curriculum is new, and environmental education itself is a new field. This is an area of interest in South Africa as a third iteration of the post-apartheid curriculum, the Curriculum and Assessment Policy Statement (CAPS) has recently been introduced into schools and many subjects have environmental learning content. Inadequate subject content knowledge influences teachers’ abilities to choose appropriate teaching and assessment methods and this might negatively affect the process of teaching and learning. Knowledgeable teachers are needed to help learners understand the current issues affecting citizens, and in particular, environmental issues, which form the focus of this study. The main research questions addressed are: 1. What are the teachers’ experiences of the Fundisa for Change continuing teacher professional development programme in relation to environment and sustainability content knowledge? 2. How does the Fundisa for Change continuing teacher professional development programme influence teachers’ practice? 3. What practices of the Fundisa for Change teacher professional development programme are characteristic of effective continuing teacher professional development initiatives? 4. How are (if at all) the practices of teacher training, teacher learning, teaching and assessment of Biodiversity content in CAPS living practices? This work was conducted as a qualitative case study and it was carried out in the provinces of Gauteng, Eastern Cape and Mpumalanga in South Africa. It included four teachers from the Eastern Cape and five from Mpumalanga. Seven teacher trainers also participated, two of which were based in Gauteng and the rest in the Eastern Cape. Data were generated through interviews and document analysis, and included analysis of teacher portfolios showing evidence of classroom practice. The study explored teachers’ experiences of an environmental education training programme called ‘Fundisa for Change’, which has been set up as a national partnership initiative to strengthen teachers’ environmental knowledge and teaching skills in order to address the above-mentioned problem. It focused on training teachers in the Life Sciences, particularly on new content knowledge on Biodiversity, and on teaching and assessment skills. It also looked into how the training influenced teaching practice. The study worked with practice theory, in particular Kemmis and Grootenboer’s (2008) theory of practice architectures, to look at the sayings, doings and relatings pertaining to the teaching of Biodiversity, and the enabling and constraining of this practice. The features and the teachers’ experiences of the Fundisa for Change professional development programme have been presented and explained. The study also used the ecologies of practices theory to describe the living nature of practices. The following are the key findings: • The Fundisa for Change programme improved the participating teachers’ Biodiversity content knowledge, teaching and assessment skills. • Practices of the Fundisa for Change teacher professional development programme characteristic of effective continuing teacher professional development initiatives are: duration; active involvement of teachers; providing teachers with subject content knowledge; promoting establishment of professional learning communities; coherence; follow-up; and assessment of teachers. • The conditions that affect the participating teachers’ teaching practice are: the use of language (both scientific and instructional); infrastructure (availability of computer laboratories, science laboratories, extra classrooms and libraries); teaching and learning support materials including laboratory apparatus; class size; and policies. • The Fundisa for Change programme encourages teachers to improvise and use the local environment in their teaching to try to tackle the problem of lack of funds and equipment. • Teaching Biodiversity practice is ‘living’ as it is characterised by the principles of living ecologies. Recommendations based on the findings are: • There is a need for more teacher training by Fundisa for Change and other organisations whose training activities are SACE approved to cater for more teachers. • A more structured plan of action from the Department of Basic Education (DBE) is needed to assist and involve more organisations and stakeholders. • Provision of infrastructure and teaching and learning resource materials to schools by the DBE needs to be accelerated as it is legally binding. • Follow-up should be formally incorporated into Fundisa for Change programme activities. • Formation of professional learning communities is very important to help new teachers as there is no formal induction programme in South Africa. • An induction policy by the DBE needs to be formulated to help establish an induction programme for newly qualified teachers. Recommendations for further research are: • Use of lesson observation for data collection to improve results. • A larger sample could be used to expand the insights gained in this study. • Fundisa for Change practices can be studied at the level of teacher professional development practices. • Other modes of teacher professional development initiatives such as Lesson Study can be tested out to overcome the challenge of teachers not wanting to be observed. • More research can be carried out on the practices of teacher training, teacher learning, student learning and assessment, as practices associated with teaching Biodiversity. The study was important in that it gave an understanding of what makes continuing teacher professional development initiatives effective. The study also looked at teaching Biodiversity through the use of contemporary forms of a practice theory which are the theory of practice architectures and the theory of the ecologies of practices. This provided understandings into how professional development programmes are experienced in practice, and showed that though the teachers were trained and positive benefits accrued, there are factors which enable or constrain their actual teaching Biodiversity practice. The study also showed that practices are interrelated in ecologies of practices. These factors need to be considered in professional development programming. , Thesis (PhD) -- Faculty of Education, Education, 2021
- Full Text:
- Date Issued: 2021-10-29
Distribution, ecological and economic impacts and competition of the invasive alien aquatic weeds (Pontederia crassipes Mart., Pistia stratiotes L., Salvinia molesta D.S. Mitch. and Azolla filiculoides Lam.) in Madagascar
- Authors: Lehavana, Adolphe
- Date: 2021-10-29
- Subjects: Pontederiaceae Madagascar , Water lettuce Madagascar , Salvinia molesta Madagascar , Azolla filiculoides Madagascar , Introduced aquatic organisms , Aquatic weeds Economic aspects , Aquatic weeds Social aspects , Aquatic weeds Geographical distribution
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10962/191225 , vital:45072
- Description: In Madagascar, as in several countries in the world, the invasion by four aquatic weeds (Pontederia crassipes Mart. (Pontederiaceae), Pistia stratiotes L. (Araceae), Salvinia molesta D.S. Mitch Salviniaceae) and Azolla filiculoides Lam. (Azollaceae) are among the drivers of environmental and socio-economic deterioration in aquatic ecosystems. Pistia stratiotes was first recorded on the island in the 19th century, and P. crassipes from the beginning of the 20th century, while S. molesta and A. filiculoides were only documented during in the 21st century. From the 1920s, botanists such as Henri Perrier de la Bathie and Raymond Decary were already aware of the dangers caused, in particular by P. crassipes in other countries, and raised the alarm, but little attention has been paid to these species. The aim of the research conducted for this thesis was to determine the distribution, socio-economic and ecological impacts of these four invasive alien aquatic weeds in Madagascar and to make recommendations for their control. First, the distributions of these four aquatic weeds were mapped. This mapping exercise compiled data from different sources including herbarium records, online data and field visits across Madagascar. The mapping study was undertaken from August 2015 to June 2020. Except for mountainous areas above 1800 m (Tsaratanana Massif, Ankaratra Massif and Andringitra Massif) where no data were available, all of Madagascar's bioclimates were invaded by at least one of the four aquatic weeds. In total, at least one species was recorded in 18 of the 22 Regions. Pontederia crassipes was recorded in 13 Regions, S. molesta in 14 Regions, P. stratiotes in 12 Regions, and A. filiculoides in 13 Regions. Herbarium records revealed the oldest record for P. stratiotes to be 1847, 1931 for P. crassipes, 1995 for S. molesta and there were no herbarium specimens for A. filiculoides prior to the start of the current study in 2015. We now know where these four weeds occur and how abundant they are. An objective of this research was to assess the impacts of the four invasive aquatic plants on the socio-economy of the island, mainly on rice production and fishing. Between 2016 and 2019, 102 households in three regions, Soanierana Ivongo, Foulpointe and Antananarivo, were randomly selected and questioned on the impact of these weeds in their aquatic ecosystems and their livelihoods such as fishing and rice growing. Surveys revealed that the four aquatic weeds significantly threatened household activities. On the east coast of Madagascar, the invasions of these four invasive species decreased fish and freshwater shrimp production by 82%. On the high plateau of Madagascar, they reduced rice yield by 30% despite requiring an additional expense of US$ 1,107/ha for control. Although farmers surveyed only used manual control to manage these weeds, they were receptive to other control methods, including integrated control using herbicides and biological control. Another objective of this research was to determine the ecological impacts of the four weeds and specifically if freshwater ecosystem functioning would return after control. To assess the ecological impact, between February 2017 to August 2019, on Lake Antsokafina, the following abiotic and biotic factors were considered: physico-chemistry of water, succession of macrophyte community and animal diversity. With the exception of turbidity, the values of the physico-chemical parameters of the water (pH, electrical conductivity, water temperature and turbidity), were similar between the infested zone and cleared zone. A study on the invasion process of aquatic weeds showed that the plant community succession of the lake changed over time in the areas that had been cleared. The submerged species Ceratophyllum demersum was the pioneer, followed by creeping species such as Echinochloa colona and Ipomoea aquatica, before the area was recolonized by aquatic weeds. Among the aquatic weeds, S. molesta was the most aggressive, covering 92% of the area one year after the start of the experiment. For animal diversity, bird, shrimp and fish community were assessed. The cleaning of the plots in the lake allowed the resumption of fishing activity providing 50 to 200g/catch for shrimp and from 0.25 to 0.5kg/catch for fish per person per day, while no catch was obtained in the areas infested by aquatic weeds were fishermen still attempting to harvest fish/shrimp from the aquatic weed infested areas. Three species of birds, Humblot’s Heron (Ardea humbloti), the white-faced whistling duck (Dendrocygna viduata) and red-billed teal (Anas erythrorhyncha) returned once the areas had been cleared. A manipulated outdoor as descriptor for laboratory experiment was conducted to determine the level and nature of competition of four aquatic weeds species against the indigenous floating fern, Salvinia hastata Desv. (Salviniaceae), using an additive series density model. It was shown that all four invasive species outcompeted S. hastata, with P. crassipes being 24 times more dominant, followed by P. stratiotes at 12 times, S. molesta at 8 times, and finally A. filiculoides at 1.2 times more dominant. This study provided direct evidence of the biodiversity impact of these four species and thus also provided an environmental argument for their control. Based on the findings of this study, a series of recommendations was formulated to manage the invasions of alien species in Madagascar with particular attention to invasive aquatic weeds. These recommendations mainly concern the establishment of management structures and legal instruments such as the creation of a lead government agency at national level and a cross-sectorial invasive species advisory committee, which should review legislation and regulations related to invasive species. , Thesis (PhD) -- Faculty of Science, Zoology and Entomology, 2021
- Full Text:
- Date Issued: 2021-10-29
- Authors: Lehavana, Adolphe
- Date: 2021-10-29
- Subjects: Pontederiaceae Madagascar , Water lettuce Madagascar , Salvinia molesta Madagascar , Azolla filiculoides Madagascar , Introduced aquatic organisms , Aquatic weeds Economic aspects , Aquatic weeds Social aspects , Aquatic weeds Geographical distribution
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10962/191225 , vital:45072
- Description: In Madagascar, as in several countries in the world, the invasion by four aquatic weeds (Pontederia crassipes Mart. (Pontederiaceae), Pistia stratiotes L. (Araceae), Salvinia molesta D.S. Mitch Salviniaceae) and Azolla filiculoides Lam. (Azollaceae) are among the drivers of environmental and socio-economic deterioration in aquatic ecosystems. Pistia stratiotes was first recorded on the island in the 19th century, and P. crassipes from the beginning of the 20th century, while S. molesta and A. filiculoides were only documented during in the 21st century. From the 1920s, botanists such as Henri Perrier de la Bathie and Raymond Decary were already aware of the dangers caused, in particular by P. crassipes in other countries, and raised the alarm, but little attention has been paid to these species. The aim of the research conducted for this thesis was to determine the distribution, socio-economic and ecological impacts of these four invasive alien aquatic weeds in Madagascar and to make recommendations for their control. First, the distributions of these four aquatic weeds were mapped. This mapping exercise compiled data from different sources including herbarium records, online data and field visits across Madagascar. The mapping study was undertaken from August 2015 to June 2020. Except for mountainous areas above 1800 m (Tsaratanana Massif, Ankaratra Massif and Andringitra Massif) where no data were available, all of Madagascar's bioclimates were invaded by at least one of the four aquatic weeds. In total, at least one species was recorded in 18 of the 22 Regions. Pontederia crassipes was recorded in 13 Regions, S. molesta in 14 Regions, P. stratiotes in 12 Regions, and A. filiculoides in 13 Regions. Herbarium records revealed the oldest record for P. stratiotes to be 1847, 1931 for P. crassipes, 1995 for S. molesta and there were no herbarium specimens for A. filiculoides prior to the start of the current study in 2015. We now know where these four weeds occur and how abundant they are. An objective of this research was to assess the impacts of the four invasive aquatic plants on the socio-economy of the island, mainly on rice production and fishing. Between 2016 and 2019, 102 households in three regions, Soanierana Ivongo, Foulpointe and Antananarivo, were randomly selected and questioned on the impact of these weeds in their aquatic ecosystems and their livelihoods such as fishing and rice growing. Surveys revealed that the four aquatic weeds significantly threatened household activities. On the east coast of Madagascar, the invasions of these four invasive species decreased fish and freshwater shrimp production by 82%. On the high plateau of Madagascar, they reduced rice yield by 30% despite requiring an additional expense of US$ 1,107/ha for control. Although farmers surveyed only used manual control to manage these weeds, they were receptive to other control methods, including integrated control using herbicides and biological control. Another objective of this research was to determine the ecological impacts of the four weeds and specifically if freshwater ecosystem functioning would return after control. To assess the ecological impact, between February 2017 to August 2019, on Lake Antsokafina, the following abiotic and biotic factors were considered: physico-chemistry of water, succession of macrophyte community and animal diversity. With the exception of turbidity, the values of the physico-chemical parameters of the water (pH, electrical conductivity, water temperature and turbidity), were similar between the infested zone and cleared zone. A study on the invasion process of aquatic weeds showed that the plant community succession of the lake changed over time in the areas that had been cleared. The submerged species Ceratophyllum demersum was the pioneer, followed by creeping species such as Echinochloa colona and Ipomoea aquatica, before the area was recolonized by aquatic weeds. Among the aquatic weeds, S. molesta was the most aggressive, covering 92% of the area one year after the start of the experiment. For animal diversity, bird, shrimp and fish community were assessed. The cleaning of the plots in the lake allowed the resumption of fishing activity providing 50 to 200g/catch for shrimp and from 0.25 to 0.5kg/catch for fish per person per day, while no catch was obtained in the areas infested by aquatic weeds were fishermen still attempting to harvest fish/shrimp from the aquatic weed infested areas. Three species of birds, Humblot’s Heron (Ardea humbloti), the white-faced whistling duck (Dendrocygna viduata) and red-billed teal (Anas erythrorhyncha) returned once the areas had been cleared. A manipulated outdoor as descriptor for laboratory experiment was conducted to determine the level and nature of competition of four aquatic weeds species against the indigenous floating fern, Salvinia hastata Desv. (Salviniaceae), using an additive series density model. It was shown that all four invasive species outcompeted S. hastata, with P. crassipes being 24 times more dominant, followed by P. stratiotes at 12 times, S. molesta at 8 times, and finally A. filiculoides at 1.2 times more dominant. This study provided direct evidence of the biodiversity impact of these four species and thus also provided an environmental argument for their control. Based on the findings of this study, a series of recommendations was formulated to manage the invasions of alien species in Madagascar with particular attention to invasive aquatic weeds. These recommendations mainly concern the establishment of management structures and legal instruments such as the creation of a lead government agency at national level and a cross-sectorial invasive species advisory committee, which should review legislation and regulations related to invasive species. , Thesis (PhD) -- Faculty of Science, Zoology and Entomology, 2021
- Full Text:
- Date Issued: 2021-10-29
Ethics of climate change: a normative account
- Authors: Afolabi, Abiodun Paul
- Date: 2021-10-29
- Subjects: Climatic changes Senegal Saint-Louis , Climatic changes Moral and ethical aspects , Cultural property Senegal Saint-Louis , Ethics Senegal Saint-Louis , Applied ethics , Environmental justice Senegal Saint-Louis , Philosophy, African , Normativity (Ethics)
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10962/192864 , vital:45272 , 10.21504/10962/192864
- Description: Consider, for instance, you and your family have lived around a place where you enjoyed the flora and fauna of the land as well as the natural environment. Fishing and farming were pleasant activities for your family, and anyone in the community not only to survive but thrive. Your neighbours and the people in the community pride themselves so much in their farming abilities and fishing techniques. Suddenly things start taking a different turn because of rising sea level and changing weather pattern. First, your land began to give way because of sweeping erosion, and later the riverbank serving the community starts drying up. Your neighbour could not hold their own in this grim condition as they started relocating. You even witnessed some of your family and friends leaving the community and you later heard that they have become climate refugees. To put it all together, you were told that what you are experiencing is one of climate change effects. You were told that the loss of the place that you once cherished is not an act of God but the result of the reckless flaring of greenhouse gasses harmful to the environment by some powerful but polluting nations. What will you do? This might sound like a fairy tale. In reality, this is the story of the people of Saint Louis Atlantic Coasts in Senegal, captured by the Global Climate Change Alliance Plus Initiative.1 Their situation has been described as ‘living on the edge’ because for centuries, Saint Louis Atlantic Coasts, home to around 230,000 inhabitants, also known as the ‘Venice of Africa’ has been protected from the pounding Atlantic waves by the ‘Langue de Barbarie,’ a narrow, 30 km peninsula at the mouth of the Senegal river. However, the low-lying sandy spit of land along this World Heritage site is itself rapidly disappearing in the present. This is the consequence of a changing climate and other man-made problems such as illegal sand-mining and over-development. Today, the southern part of the Langue de Barbarie is an island, and the village of Doune Baba Dieye is under more than a metre of water. The villagers have become climate refugees, forced to live in temporary camps on the mainland. Not only have they lost their homes, but they have also lost significant cultural heritage like the farming and fishing culture tied to this place. The ethical considerations that emerge from climate change impacts on the world’s cultural heritage are varied. However, it seems not as self-evident in the way that research on climate change ethics has been framed around economic interest and direct threats to human life and other species. Even when they mention climate impacts on heritage sites around the world, those of Africans have been side-lined. For instance, the impact of climate change on small island nations like Tuvalu, Kiribati2 have gained much traction in climate change discourse, but we do not get to see stories of Africans whose cherished cultural heritage are affected by climate despoliation. How do we respond to this intractable challenge? This is a question of justice and, to be more precise, climate justice. Many principles and proposals for climate justice have been put forward, but the insufficient attention to the vulnerabilities or loss of cultural heritage values of Africans, which is a critical aspect of their social realities, make these theories less persuasive on a global level. This thesis, then, fills this gap in the literature by suggesting that the failure to take cognizance of the injustice in neglecting cultural heritage values when dealing with the burden of climate change is the effect of three problems. One, the value of culture is less understood in this environmental age. Hence, cultural values are excluded or made to be secondary in consideration of principles of climate justice. Second, the idea of Personhood has been neglected in climate ethics and climate justice discourse. Yet, this idea of Personhood can be an enabler of climate justice in that a realization of the significance of cultural heritage to the wellness of the human persons in Africa, makes it loss morally reprehensible. Third, those whose cultural heritage is significantly affected do not get represented in the debate about sharing the burden of climate change. This dissertation thereby builds upon the general findings of the past about anthropogenic climate change, its causes and consequences. Adopting a discursive normative framework, I also address the significance of cultural heritage in this contemporary environmental age and discuss the global justice implications of cultural heritage loss to climate change. This dissertation further provides a critique of mainstream climate justice theories, especially their marginalization of the cultural dimension of climate change. In this regard, the metaphor - ‘cultural storm’ was deployed to argue that climate justice discourses have neither factored the deep socio-cultural impact of climate change nor do they draw on the cultural understanding of justice in putting forward their theories. Given the nature of the indirect, cumulative, and interconnected invisible losses to cultural heritage from climate change, it seems unlikely that they can be addressed by simple tweaks of the climate justice status quo. This dissertation proposes that the idea of personhood in African philosophy, can be conceived to ensure climate justice live up to its expectations in a world of diverse persons dealing with a complex phenomenon like climate change. It argues that a cultural dimension of climate ethics has implications for how mitigation, adaptation and compensation plans should be furthered for global climate justice. At the foundation of my argument, I suggest that what is needed in climate justice discourse is a commitment to explore new and innovative alternatives that will produce an inclusive global climate treaty that is sensitive to the cultural heritage assets that is destroyed by climate change in Africa. This will require a multi-dimensional framework that allows fundamentally different kinds of values and benefits to be given equal visibility and standing in global climate negotiations. The dissertation proceeds in six chapters. In the first chapter, I discuss how climate change denies, damage and destroys cultural heritage values in Africa and argue that it is unjust to ignore this dimension of climate change impact, particularly on the African continent. In the second chapter, I critically discuss the normative value of cultural heritage in an environmentally sustainable and morally appropriate way for this global age. I argue that what is lost when climate change affects cultural heritage is a significant cultural asset that ought to be seriously considered in climate ethics. The third chapter addresses the global justice implications of the destruction of Africa's cultural heritage by climate change that must be paid attention to. In chapter four, I evaluate the plausibility of some of the mainstream climate justice proposals. I offered a different possible critique of current approaches to climate justice to show how they have furthered cultural injustice. The critique of current climate justice theories that I offer, stems from an uninspiring approach that belies logic permitting the sacrificing of that which is connected to others wellbeing as well as the implicit assumptions and the limitation of the idea of justice that undergird these climate justice theories. I offer, in chapter five, a plausible climate ethics theory that recognizes culturally embedded ideas of justice and empower all stakeholders to build by themselves, lives that are, in the light of these ideas, deemed to be adversely impacted by climate change. This theory advances a socio-cultural perspective to climate change which could provide a nuanced basis for understanding and addressing global climate duties that will be sensitive to the loss of cultural heritage. Specifically, I apply the African conception of personhood, to provide a normative basis for a different but intuitive understanding of the cultural dimension of climate ethics. In the final chapter, I discuss how this theory can be applied to rethink current global responses in the form of mitigation, adaptation and compensation in such a way that it takes seriously the impacts of climate change on Africa’s cultural heritage and values. , Thesis (PhD) -- Faculty of Humanities, Philosophy, 2021
- Full Text:
- Date Issued: 2021-10-29
- Authors: Afolabi, Abiodun Paul
- Date: 2021-10-29
- Subjects: Climatic changes Senegal Saint-Louis , Climatic changes Moral and ethical aspects , Cultural property Senegal Saint-Louis , Ethics Senegal Saint-Louis , Applied ethics , Environmental justice Senegal Saint-Louis , Philosophy, African , Normativity (Ethics)
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10962/192864 , vital:45272 , 10.21504/10962/192864
- Description: Consider, for instance, you and your family have lived around a place where you enjoyed the flora and fauna of the land as well as the natural environment. Fishing and farming were pleasant activities for your family, and anyone in the community not only to survive but thrive. Your neighbours and the people in the community pride themselves so much in their farming abilities and fishing techniques. Suddenly things start taking a different turn because of rising sea level and changing weather pattern. First, your land began to give way because of sweeping erosion, and later the riverbank serving the community starts drying up. Your neighbour could not hold their own in this grim condition as they started relocating. You even witnessed some of your family and friends leaving the community and you later heard that they have become climate refugees. To put it all together, you were told that what you are experiencing is one of climate change effects. You were told that the loss of the place that you once cherished is not an act of God but the result of the reckless flaring of greenhouse gasses harmful to the environment by some powerful but polluting nations. What will you do? This might sound like a fairy tale. In reality, this is the story of the people of Saint Louis Atlantic Coasts in Senegal, captured by the Global Climate Change Alliance Plus Initiative.1 Their situation has been described as ‘living on the edge’ because for centuries, Saint Louis Atlantic Coasts, home to around 230,000 inhabitants, also known as the ‘Venice of Africa’ has been protected from the pounding Atlantic waves by the ‘Langue de Barbarie,’ a narrow, 30 km peninsula at the mouth of the Senegal river. However, the low-lying sandy spit of land along this World Heritage site is itself rapidly disappearing in the present. This is the consequence of a changing climate and other man-made problems such as illegal sand-mining and over-development. Today, the southern part of the Langue de Barbarie is an island, and the village of Doune Baba Dieye is under more than a metre of water. The villagers have become climate refugees, forced to live in temporary camps on the mainland. Not only have they lost their homes, but they have also lost significant cultural heritage like the farming and fishing culture tied to this place. The ethical considerations that emerge from climate change impacts on the world’s cultural heritage are varied. However, it seems not as self-evident in the way that research on climate change ethics has been framed around economic interest and direct threats to human life and other species. Even when they mention climate impacts on heritage sites around the world, those of Africans have been side-lined. For instance, the impact of climate change on small island nations like Tuvalu, Kiribati2 have gained much traction in climate change discourse, but we do not get to see stories of Africans whose cherished cultural heritage are affected by climate despoliation. How do we respond to this intractable challenge? This is a question of justice and, to be more precise, climate justice. Many principles and proposals for climate justice have been put forward, but the insufficient attention to the vulnerabilities or loss of cultural heritage values of Africans, which is a critical aspect of their social realities, make these theories less persuasive on a global level. This thesis, then, fills this gap in the literature by suggesting that the failure to take cognizance of the injustice in neglecting cultural heritage values when dealing with the burden of climate change is the effect of three problems. One, the value of culture is less understood in this environmental age. Hence, cultural values are excluded or made to be secondary in consideration of principles of climate justice. Second, the idea of Personhood has been neglected in climate ethics and climate justice discourse. Yet, this idea of Personhood can be an enabler of climate justice in that a realization of the significance of cultural heritage to the wellness of the human persons in Africa, makes it loss morally reprehensible. Third, those whose cultural heritage is significantly affected do not get represented in the debate about sharing the burden of climate change. This dissertation thereby builds upon the general findings of the past about anthropogenic climate change, its causes and consequences. Adopting a discursive normative framework, I also address the significance of cultural heritage in this contemporary environmental age and discuss the global justice implications of cultural heritage loss to climate change. This dissertation further provides a critique of mainstream climate justice theories, especially their marginalization of the cultural dimension of climate change. In this regard, the metaphor - ‘cultural storm’ was deployed to argue that climate justice discourses have neither factored the deep socio-cultural impact of climate change nor do they draw on the cultural understanding of justice in putting forward their theories. Given the nature of the indirect, cumulative, and interconnected invisible losses to cultural heritage from climate change, it seems unlikely that they can be addressed by simple tweaks of the climate justice status quo. This dissertation proposes that the idea of personhood in African philosophy, can be conceived to ensure climate justice live up to its expectations in a world of diverse persons dealing with a complex phenomenon like climate change. It argues that a cultural dimension of climate ethics has implications for how mitigation, adaptation and compensation plans should be furthered for global climate justice. At the foundation of my argument, I suggest that what is needed in climate justice discourse is a commitment to explore new and innovative alternatives that will produce an inclusive global climate treaty that is sensitive to the cultural heritage assets that is destroyed by climate change in Africa. This will require a multi-dimensional framework that allows fundamentally different kinds of values and benefits to be given equal visibility and standing in global climate negotiations. The dissertation proceeds in six chapters. In the first chapter, I discuss how climate change denies, damage and destroys cultural heritage values in Africa and argue that it is unjust to ignore this dimension of climate change impact, particularly on the African continent. In the second chapter, I critically discuss the normative value of cultural heritage in an environmentally sustainable and morally appropriate way for this global age. I argue that what is lost when climate change affects cultural heritage is a significant cultural asset that ought to be seriously considered in climate ethics. The third chapter addresses the global justice implications of the destruction of Africa's cultural heritage by climate change that must be paid attention to. In chapter four, I evaluate the plausibility of some of the mainstream climate justice proposals. I offered a different possible critique of current approaches to climate justice to show how they have furthered cultural injustice. The critique of current climate justice theories that I offer, stems from an uninspiring approach that belies logic permitting the sacrificing of that which is connected to others wellbeing as well as the implicit assumptions and the limitation of the idea of justice that undergird these climate justice theories. I offer, in chapter five, a plausible climate ethics theory that recognizes culturally embedded ideas of justice and empower all stakeholders to build by themselves, lives that are, in the light of these ideas, deemed to be adversely impacted by climate change. This theory advances a socio-cultural perspective to climate change which could provide a nuanced basis for understanding and addressing global climate duties that will be sensitive to the loss of cultural heritage. Specifically, I apply the African conception of personhood, to provide a normative basis for a different but intuitive understanding of the cultural dimension of climate ethics. In the final chapter, I discuss how this theory can be applied to rethink current global responses in the form of mitigation, adaptation and compensation in such a way that it takes seriously the impacts of climate change on Africa’s cultural heritage and values. , Thesis (PhD) -- Faculty of Humanities, Philosophy, 2021
- Full Text:
- Date Issued: 2021-10-29
Evaluating and predicting impacts of Australian redclaw crayfish Cherax quadricarinatus and Louisiana red swamp crayfish Procambarus clarkii invasions
- Madzivanzira, Takudzwa Comfort
- Authors: Madzivanzira, Takudzwa Comfort
- Date: 2021-10-29
- Subjects: Cherax Africa , Procambarus clarkii Africa , Freshwater crabs Africa , Crayfish Zambezi River , Crayfish Food Zambezi River , Aquatic biodiversity Africa , Conservation biology Zambezi River , Fishing Catch effort Africa , Introduced freshwater organisms Africa , Fish populations Africa , Functional response (FR)
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10962/191137 , vital:45064 , 10.21504/10962/191137
- Description: Freshwater crayfish have become one of the most widely introduced freshwater taxa globally. Crayfish introductions have not spared the African continent, which, apart from Madagascar, is naturally devoid of native freshwater crayfish. These introductions are of concern because invasive crayfish have generally been shown to cause strong impacts on recipient ecosystems outside Africa. This study therefore set out to compile up-to-date information regarding crayfish introductions in Africa, their pathways and distributions and to improve our understanding of the nature and magnitude of their environmental impacts. A systematic review revealed that nine crayfish species have been introduced into the continent with five of those, Astacus astacus, Cherax quadricarinatus, Faxonius limosus, Procambarus clarkii and Procambarus virginalis, having established naturalised populations in fourteen African countries (Chapter 2). The main driver of these crayfish introductions was to provide socio-economic benefits but there is limited evidence of success. The thesis further documents attempts made to address crayfish knowledge gaps in Africa, including standardisation of C. quadricarinatus sampling gear (Chapter 3), determination of the distribution of C. quadricarinatus in the recently invaded Upper Zambezi Basin (Chapter 4), and predicting ecological and socioeconomic impacts of two crayfish species that are spreading rapidly in Southern Africa, namely, C. quadricarinatus and P. clarkii (Chapters 5 – 8). To standardise C. quadricarinatus sampling methods in Africa, two methods used in Southern Africa were compared and the Promar® collapsible trap baited with dry pellets was recommended as the best approach for C. quadricarinatus abundance studies due to the high catch per unit effort (CPUE), probability of capture and the suitability of dry dog food as a standard bait. This standard approach was used for crayfish surveys in the Zambezi Basin to comprehensively determine the spread and establishment of C. quadricarinatus across the basin. The establishment of C. quadricarinatus in the Barotse Floodplain, Upper Zambezi Floodplains freshwater ecoregion was confirmed. Although the probability of capture and catch per unit effort (CPUE) of C. quadricarinatus in the Barotse floodplain were similar to that of older invasions in the basin (Lake Kariba and Kafue River), morphometric differences among C. quadricarinatus populations sampled from these invaded regions were detected. Although crayfish were not detected in other regions, for example, the Okavango Floodplains ecoregions, C. quadricarinatus have the potential to spread at a downstream and upstream rate of 49 and 12 km·year-1, impacting native biota therein. To evaluate the potential for ecological impacts, the consumer-resource dynamics of C. quadricarinatus and P. clarkii were described in comparison to a native trophic analogue, the freshwater crab of the Potamonautes genus, preying on various native taxa ubiquitous to African aquatic and terrestrial ecosystems. The use of functional response (FR) and consumption experiments in this study showed the potential impacts of the two crayfish species on native resources and on resources that support livelihoods in invaded ecosystems. This in most cases was a result of their high attack parameter, which also resulted in high functional responses ratios (FRRs) compared to native crabs. The crayfish FR, FRRs and consumption rates were mostly enhanced under the high temperature treatments. The FRs and consumption results were then combined with the field biomasses of crayfish and crabs to calculate the relative impact potential (RIP) to successfully predict the degree of impact caused by crayfish species relative to crabs. Crayfish species consistently displayed RIP scores > 1 relative to the native crab irrespective of region, which were higher for the summer than the winter season, suggesting greater impact of the invaders compared to the native species. This study further estimated the socioeconomic losses due to catch spoilage by C. quadricarinatus which are up to 1500 t per year in the invaded Kafue River Basin, which translates to an annual income loss of US$ 2 million. Information provided in this study is vital for conservation management and to compel policymakers to develop appropriate conservation management tools within regulatory frameworks, which could stop or minimise the spread of crayfish species and protect Africa from further losing aquatic biodiversity. , Thesis (PhD) -- Faculty of Science, Ichthyology and Fisheries Science, 2021
- Full Text:
- Date Issued: 2021-10-29
- Authors: Madzivanzira, Takudzwa Comfort
- Date: 2021-10-29
- Subjects: Cherax Africa , Procambarus clarkii Africa , Freshwater crabs Africa , Crayfish Zambezi River , Crayfish Food Zambezi River , Aquatic biodiversity Africa , Conservation biology Zambezi River , Fishing Catch effort Africa , Introduced freshwater organisms Africa , Fish populations Africa , Functional response (FR)
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10962/191137 , vital:45064 , 10.21504/10962/191137
- Description: Freshwater crayfish have become one of the most widely introduced freshwater taxa globally. Crayfish introductions have not spared the African continent, which, apart from Madagascar, is naturally devoid of native freshwater crayfish. These introductions are of concern because invasive crayfish have generally been shown to cause strong impacts on recipient ecosystems outside Africa. This study therefore set out to compile up-to-date information regarding crayfish introductions in Africa, their pathways and distributions and to improve our understanding of the nature and magnitude of their environmental impacts. A systematic review revealed that nine crayfish species have been introduced into the continent with five of those, Astacus astacus, Cherax quadricarinatus, Faxonius limosus, Procambarus clarkii and Procambarus virginalis, having established naturalised populations in fourteen African countries (Chapter 2). The main driver of these crayfish introductions was to provide socio-economic benefits but there is limited evidence of success. The thesis further documents attempts made to address crayfish knowledge gaps in Africa, including standardisation of C. quadricarinatus sampling gear (Chapter 3), determination of the distribution of C. quadricarinatus in the recently invaded Upper Zambezi Basin (Chapter 4), and predicting ecological and socioeconomic impacts of two crayfish species that are spreading rapidly in Southern Africa, namely, C. quadricarinatus and P. clarkii (Chapters 5 – 8). To standardise C. quadricarinatus sampling methods in Africa, two methods used in Southern Africa were compared and the Promar® collapsible trap baited with dry pellets was recommended as the best approach for C. quadricarinatus abundance studies due to the high catch per unit effort (CPUE), probability of capture and the suitability of dry dog food as a standard bait. This standard approach was used for crayfish surveys in the Zambezi Basin to comprehensively determine the spread and establishment of C. quadricarinatus across the basin. The establishment of C. quadricarinatus in the Barotse Floodplain, Upper Zambezi Floodplains freshwater ecoregion was confirmed. Although the probability of capture and catch per unit effort (CPUE) of C. quadricarinatus in the Barotse floodplain were similar to that of older invasions in the basin (Lake Kariba and Kafue River), morphometric differences among C. quadricarinatus populations sampled from these invaded regions were detected. Although crayfish were not detected in other regions, for example, the Okavango Floodplains ecoregions, C. quadricarinatus have the potential to spread at a downstream and upstream rate of 49 and 12 km·year-1, impacting native biota therein. To evaluate the potential for ecological impacts, the consumer-resource dynamics of C. quadricarinatus and P. clarkii were described in comparison to a native trophic analogue, the freshwater crab of the Potamonautes genus, preying on various native taxa ubiquitous to African aquatic and terrestrial ecosystems. The use of functional response (FR) and consumption experiments in this study showed the potential impacts of the two crayfish species on native resources and on resources that support livelihoods in invaded ecosystems. This in most cases was a result of their high attack parameter, which also resulted in high functional responses ratios (FRRs) compared to native crabs. The crayfish FR, FRRs and consumption rates were mostly enhanced under the high temperature treatments. The FRs and consumption results were then combined with the field biomasses of crayfish and crabs to calculate the relative impact potential (RIP) to successfully predict the degree of impact caused by crayfish species relative to crabs. Crayfish species consistently displayed RIP scores > 1 relative to the native crab irrespective of region, which were higher for the summer than the winter season, suggesting greater impact of the invaders compared to the native species. This study further estimated the socioeconomic losses due to catch spoilage by C. quadricarinatus which are up to 1500 t per year in the invaded Kafue River Basin, which translates to an annual income loss of US$ 2 million. Information provided in this study is vital for conservation management and to compel policymakers to develop appropriate conservation management tools within regulatory frameworks, which could stop or minimise the spread of crayfish species and protect Africa from further losing aquatic biodiversity. , Thesis (PhD) -- Faculty of Science, Ichthyology and Fisheries Science, 2021
- Full Text:
- Date Issued: 2021-10-29
Generation news: Consuming, sharing, and producing news across generations in five Johannesburg households
- Authors: Silber, Gerson Russel
- Date: 2021-10-29
- Subjects: Baby boom generation South Africa , Generation Y South Africa , Conflict of generations South Africa Johannesburg , Generations South Africa Johannesburg , Digital media South Africa , Social media and journalism South Africa , Digital media Social aspects South Africa , News audiences South Africa
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10962/192342 , vital:45217
- Description: This study sets out to explore the meaning, extent, and impact of the generational divide, between so-called Baby Boomers and their Millennial offspring, on the way news is accessed, consumed, shared, and produced in five purposively selected households in the Johannesburg area. Aside from these widely-used generational identifiers, Baby Boomers and Millennials are also commonly referred to as Digital Immigrants and Digital Natives, respectively. However, in a world where smartphones have become commonplace, and internet connectivity via fixed broadband and mobile data is ubiquitous, it can be argued that digital technologies now serve as a link, or perhaps even a bridge, between younger and older generations living in the same household. The study aims to put this proposition to the test, by interrogating the role of news as a conduit for storytelling and information-sharing in environments where each occupant will typically be using their own devices, with a wide variety of personally-curated news sources and platforms at their fingertips. This fragmentation or individualisation of access to news stands in sharp contrast to the communal traditions of the pre-Internet era, during which families would gather around the TV set to watch the evening newscast, or share sections of the Sunday newspaper according to their age and interest. This research, which seeks to address a gap in the literature of research into intra-generational news consumption in family households in the digital era, identifies points of intersection as well as diversion in media usage habits. An example of the former is the prevalence of WhatsApp as a centralised "meeting-point" for the sharing of useful, hyper-localised information within the family group, and beyond that, as a cross-generational news and discussion platform in its own right. On the opposite end of the spectrum, the study explores strict and seemingly counterintuitive divides between the generations, with some Millennial respondents rejecting social media platforms as "pointless and invasive, and some Baby Boomer parents embracing the platforms as forums for free expression and networking. In line with the key research question, which seeks to identify and analyse news usage and consumption across the generations in a selection of family households, the study considers the ways in which families in the digital era are creating a culture of shared interests and the active sharing of news, breaching the boundaries of their private spaces in a microcosm of the Habermasian public sphere of discourse and opinion. , Thesis (MA) -- Faculty of Humanities, Journalism and Media Studies, 2021
- Full Text:
- Date Issued: 2021-10-29
- Authors: Silber, Gerson Russel
- Date: 2021-10-29
- Subjects: Baby boom generation South Africa , Generation Y South Africa , Conflict of generations South Africa Johannesburg , Generations South Africa Johannesburg , Digital media South Africa , Social media and journalism South Africa , Digital media Social aspects South Africa , News audiences South Africa
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10962/192342 , vital:45217
- Description: This study sets out to explore the meaning, extent, and impact of the generational divide, between so-called Baby Boomers and their Millennial offspring, on the way news is accessed, consumed, shared, and produced in five purposively selected households in the Johannesburg area. Aside from these widely-used generational identifiers, Baby Boomers and Millennials are also commonly referred to as Digital Immigrants and Digital Natives, respectively. However, in a world where smartphones have become commonplace, and internet connectivity via fixed broadband and mobile data is ubiquitous, it can be argued that digital technologies now serve as a link, or perhaps even a bridge, between younger and older generations living in the same household. The study aims to put this proposition to the test, by interrogating the role of news as a conduit for storytelling and information-sharing in environments where each occupant will typically be using their own devices, with a wide variety of personally-curated news sources and platforms at their fingertips. This fragmentation or individualisation of access to news stands in sharp contrast to the communal traditions of the pre-Internet era, during which families would gather around the TV set to watch the evening newscast, or share sections of the Sunday newspaper according to their age and interest. This research, which seeks to address a gap in the literature of research into intra-generational news consumption in family households in the digital era, identifies points of intersection as well as diversion in media usage habits. An example of the former is the prevalence of WhatsApp as a centralised "meeting-point" for the sharing of useful, hyper-localised information within the family group, and beyond that, as a cross-generational news and discussion platform in its own right. On the opposite end of the spectrum, the study explores strict and seemingly counterintuitive divides between the generations, with some Millennial respondents rejecting social media platforms as "pointless and invasive, and some Baby Boomer parents embracing the platforms as forums for free expression and networking. In line with the key research question, which seeks to identify and analyse news usage and consumption across the generations in a selection of family households, the study considers the ways in which families in the digital era are creating a culture of shared interests and the active sharing of news, breaching the boundaries of their private spaces in a microcosm of the Habermasian public sphere of discourse and opinion. , Thesis (MA) -- Faculty of Humanities, Journalism and Media Studies, 2021
- Full Text:
- Date Issued: 2021-10-29
Genetic connectivity of the roundjaw bonefish (Albula glossodonta) in the Southwest Indian Ocean
- Talma, Sheena Claudia Aisa Lydie
- Authors: Talma, Sheena Claudia Aisa Lydie
- Date: 2021-10-29
- Subjects: Bonefish Mauritius , Bonefish Seychelles , Bonefish Genetics , Bonefish Habitat , Bonefish Geographical distribution , Bonefish Larvae Dispersal , Genetic markers , Cytochrome b , Fish populations Mauritius , Fish populations Seychelles , Marine ecotourism , Saltwater fly fishing , Bonefish fisheries Catch effort
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10962/192174 , vital:45202
- Description: The Southwest Indian Ocean (SWIO) islands of Mauritius and Seychelles are both highly dependent on tourism and fisheries for their economies. One of the growing ecotourism sectors is saltwater fly fishing, an industry based on catch-and-release fishing for a host of species, including bonefishes. Bonefishes (Albula spp.) have received significant research attention in the Pacific and Atlantic Oceans, with only sporadic research conducted in the Indian Ocean. My project aimed to investigate the genetic connectivity of the roundjaw bonefish (Albula glossodonta) in two island states (Seychelles and Mauritius) within the SWIO using a mitochondrial genetic marker (cyt-b) and next generation sequencing (ddRADseq). Samples collected were grouped based on their spatial distribution. The Seychelles consisted of four island groups (Inner Island Group, Aldabra Group, Amirantes and Alphonse Group, and Farquhar Group) whereas Mauritius was represented by one island group (Saint Brandon). Genetic analyses were undertaken between and within each of these groups. Mitochondrial cytochrome-b identified two species of bonefish: Albula glossodonta and Albula oligolepis; the latter was only genetically identified from the Inner Island Group. I hypothesise that this is due to habitat partitioning, with A. oligolepis being a deeper dwelling bonefish species compared to A. glossodonta, which occupies shallow water habitats such as sand flats, atoll lagoons and reef flats. Neutral SNP loci revealed a panmictic pattern of distribution for A. glossodonta throughout the Seychelles Island groups but showed a pattern of weak structure between Seychelles and Mauritius. Genetic diversity indices such as allelic richness, showed low diversity across the sampling sites (AR range: 1.761-1.889). Population structure tests such as pairwise FST showed low but significant population structure. The highest FST indices were recorded between the Aldabra and Farquhar Groups, as well as the Aldabra and Saint Brandon Groups (0.044 ± 0.000 and 0.040 ± 0.000, respectively). Descriptive tests such as PCA and DAPC showed similar trends, whereby Saint Brandon clustered separately from the other samples from the Seychelles Island groups. However, these trends were Abstract seen at very low variations (PCA axes 1 and 2 accounted for only 2.0 and 1.9 % of the total variation, respectively). A population assignment test grouped the individuals as one ancestral population. A spatial principal component analysis showed that Saint Brandon was dissimilar to the Seychelles Island groups. Like other Elopomorph species, bonefishes have leptocephalus larvae capable of long-distance dispersal which may explain the well-mixed genetic population observed within the Seychelles islands. Although currents within the Indian Ocean, especially on a mesoscale, are not well understood, the South Equatorial Current likely facilitates connectivity between the Seychelles islands while also limiting gene flow between Seychelles and Mauritius. Understanding population structure is important for informing the appropriate management and conservation strategies, especially in oceanic nations where data informing important industries like tourism and fisheries are often limited. The bonefish fly fishing industry is well-known to be a lucrative sector, generating, for example US$ 1.4 million a year in the Bahamas. This study recognised that there are numerous knowledge gaps relevant to the bonefish industry that need to be addressed, including: 1) understanding the socio-economic importance of fly fishing to island states like Seychelles, 2) estimating the abundance and species distribution of bonefishes within Seychelles, 3) understanding effectiveness of MPAs for recreational fishery species like bonefish and, lastly, 4) generating more fishery-relevant biological information on the heavily targeted fly fishing species within Seychelles. These needs must be met to inform management plans and to better manage the fly fishing ventures that target species like bonefish. , Thesis (MSc) -- Faculty of Science, Ichthyology and Fisheries Science, 2021
- Full Text:
- Date Issued: 2021-10-29
- Authors: Talma, Sheena Claudia Aisa Lydie
- Date: 2021-10-29
- Subjects: Bonefish Mauritius , Bonefish Seychelles , Bonefish Genetics , Bonefish Habitat , Bonefish Geographical distribution , Bonefish Larvae Dispersal , Genetic markers , Cytochrome b , Fish populations Mauritius , Fish populations Seychelles , Marine ecotourism , Saltwater fly fishing , Bonefish fisheries Catch effort
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10962/192174 , vital:45202
- Description: The Southwest Indian Ocean (SWIO) islands of Mauritius and Seychelles are both highly dependent on tourism and fisheries for their economies. One of the growing ecotourism sectors is saltwater fly fishing, an industry based on catch-and-release fishing for a host of species, including bonefishes. Bonefishes (Albula spp.) have received significant research attention in the Pacific and Atlantic Oceans, with only sporadic research conducted in the Indian Ocean. My project aimed to investigate the genetic connectivity of the roundjaw bonefish (Albula glossodonta) in two island states (Seychelles and Mauritius) within the SWIO using a mitochondrial genetic marker (cyt-b) and next generation sequencing (ddRADseq). Samples collected were grouped based on their spatial distribution. The Seychelles consisted of four island groups (Inner Island Group, Aldabra Group, Amirantes and Alphonse Group, and Farquhar Group) whereas Mauritius was represented by one island group (Saint Brandon). Genetic analyses were undertaken between and within each of these groups. Mitochondrial cytochrome-b identified two species of bonefish: Albula glossodonta and Albula oligolepis; the latter was only genetically identified from the Inner Island Group. I hypothesise that this is due to habitat partitioning, with A. oligolepis being a deeper dwelling bonefish species compared to A. glossodonta, which occupies shallow water habitats such as sand flats, atoll lagoons and reef flats. Neutral SNP loci revealed a panmictic pattern of distribution for A. glossodonta throughout the Seychelles Island groups but showed a pattern of weak structure between Seychelles and Mauritius. Genetic diversity indices such as allelic richness, showed low diversity across the sampling sites (AR range: 1.761-1.889). Population structure tests such as pairwise FST showed low but significant population structure. The highest FST indices were recorded between the Aldabra and Farquhar Groups, as well as the Aldabra and Saint Brandon Groups (0.044 ± 0.000 and 0.040 ± 0.000, respectively). Descriptive tests such as PCA and DAPC showed similar trends, whereby Saint Brandon clustered separately from the other samples from the Seychelles Island groups. However, these trends were Abstract seen at very low variations (PCA axes 1 and 2 accounted for only 2.0 and 1.9 % of the total variation, respectively). A population assignment test grouped the individuals as one ancestral population. A spatial principal component analysis showed that Saint Brandon was dissimilar to the Seychelles Island groups. Like other Elopomorph species, bonefishes have leptocephalus larvae capable of long-distance dispersal which may explain the well-mixed genetic population observed within the Seychelles islands. Although currents within the Indian Ocean, especially on a mesoscale, are not well understood, the South Equatorial Current likely facilitates connectivity between the Seychelles islands while also limiting gene flow between Seychelles and Mauritius. Understanding population structure is important for informing the appropriate management and conservation strategies, especially in oceanic nations where data informing important industries like tourism and fisheries are often limited. The bonefish fly fishing industry is well-known to be a lucrative sector, generating, for example US$ 1.4 million a year in the Bahamas. This study recognised that there are numerous knowledge gaps relevant to the bonefish industry that need to be addressed, including: 1) understanding the socio-economic importance of fly fishing to island states like Seychelles, 2) estimating the abundance and species distribution of bonefishes within Seychelles, 3) understanding effectiveness of MPAs for recreational fishery species like bonefish and, lastly, 4) generating more fishery-relevant biological information on the heavily targeted fly fishing species within Seychelles. These needs must be met to inform management plans and to better manage the fly fishing ventures that target species like bonefish. , Thesis (MSc) -- Faculty of Science, Ichthyology and Fisheries Science, 2021
- Full Text:
- Date Issued: 2021-10-29
Hermēs Dolios: Performances of Hermes as trickster in the Homeric Hymn to Hermes
- Authors: Nel, Aiden Pieter
- Date: 2021-10-29
- Subjects: Hermes (Greek deity) , Hymn to Hermes , Tricksters in literature , Loki (Norse deity) , Hynes, William J , Doty, William G, 1939-J , Wakdjunkaga (Winnebago Trickster) , Ture (Zande Trickster)
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10962/190978 , vital:45046
- Description: This thesis explores the Greek god Hermes' representation in the Homeric Hymn to Hermes to establish the extent to which he partakes in Hynes' defined set of characteristics associated with mythological 'trickster' figures. Hermes is an unorthodox figure as although he embodies many aspects of the trickster, he willingly relinquishes some of these aspects within his hymn. I first outline and explore the trickster phenomenon and the complex methodological issue concerning global comparison. Hynes’ criteria are first applied to three other tricksters the Amerindian (Winnebago) trickster Wakdjunkaga, the central African (Azande) trickster Ture and the northern European (Norse) trickster Loki, which establishes a baseline that will help determine how Hermes conforms to this typology. All three figures’ cultural contexts are first addressed, as the cultural context is key in understanding a figure’s potential inclusion in the trickster category. I then explore Hermes’ performances within his hymn and other genres to formulate how his patron powers and actions relate to his designation as a trickster. I argue, in conclusion, that Hynes’ typology is a useful tool in determining any figure’s degree of ‘tricksterness’ and show that Hermes and the other three figures do embody Hynes’ characteristics. Each, however, embodies them differently and in a specific manner. I argue that the manner in which they relate to the criteria is dictated by their respective cultural contexts, and what their narrators intended to illustrate through the stories wherein tricksters reside. I further argue that narrative intent, genre and cultural context appear to be the main factors that mould each respective figure. , Thesis (MA) -- Faculty of Humanities, School of Languages and Literatures, 2021
- Full Text:
- Date Issued: 2021-10-29
- Authors: Nel, Aiden Pieter
- Date: 2021-10-29
- Subjects: Hermes (Greek deity) , Hymn to Hermes , Tricksters in literature , Loki (Norse deity) , Hynes, William J , Doty, William G, 1939-J , Wakdjunkaga (Winnebago Trickster) , Ture (Zande Trickster)
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10962/190978 , vital:45046
- Description: This thesis explores the Greek god Hermes' representation in the Homeric Hymn to Hermes to establish the extent to which he partakes in Hynes' defined set of characteristics associated with mythological 'trickster' figures. Hermes is an unorthodox figure as although he embodies many aspects of the trickster, he willingly relinquishes some of these aspects within his hymn. I first outline and explore the trickster phenomenon and the complex methodological issue concerning global comparison. Hynes’ criteria are first applied to three other tricksters the Amerindian (Winnebago) trickster Wakdjunkaga, the central African (Azande) trickster Ture and the northern European (Norse) trickster Loki, which establishes a baseline that will help determine how Hermes conforms to this typology. All three figures’ cultural contexts are first addressed, as the cultural context is key in understanding a figure’s potential inclusion in the trickster category. I then explore Hermes’ performances within his hymn and other genres to formulate how his patron powers and actions relate to his designation as a trickster. I argue, in conclusion, that Hynes’ typology is a useful tool in determining any figure’s degree of ‘tricksterness’ and show that Hermes and the other three figures do embody Hynes’ characteristics. Each, however, embodies them differently and in a specific manner. I argue that the manner in which they relate to the criteria is dictated by their respective cultural contexts, and what their narrators intended to illustrate through the stories wherein tricksters reside. I further argue that narrative intent, genre and cultural context appear to be the main factors that mould each respective figure. , Thesis (MA) -- Faculty of Humanities, School of Languages and Literatures, 2021
- Full Text:
- Date Issued: 2021-10-29
Jungle Drive and Other Stories
- Authors: Koenig, Nathalie
- Date: 2021-10-29
- Subjects: Creative writing (Higher education) South Africa , South African fiction (English) 21st century , South African poetry (English) 21st century , Short stories, South African (English) 21st century
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10962/192225 , vital:45207
- Description: My thesis comprises prose in a variety of forms with porous borders, including the short story, flash fiction and prose poetry. I am attracted to a processual approach to writing as I like the potential for experimentation with spontaneity and textual improvisation within and across forms that this allows. I am influenced by Joanna Ruocco’s novellas, The Mothering Coven and Dan, whose worlds are built with generously scattered references, interesting words and strange features, delivered in a dead-pan tone that joyfully scrambles my logic. At the same time, I am inspired by the precision and beauty of Tina May Hall’s prose, and how she plays in the space between the natural and magical worlds. In addition, I draw on the musicality and rhythm of Noy Holland and JA Tyler’s prose, adding a corporeal layer to the words, sounds and movement of the text. , Thesis (MA) -- Faculty of Humanities, School of Languages and Literatures, 2021
- Full Text:
- Date Issued: 2021-10-29
- Authors: Koenig, Nathalie
- Date: 2021-10-29
- Subjects: Creative writing (Higher education) South Africa , South African fiction (English) 21st century , South African poetry (English) 21st century , Short stories, South African (English) 21st century
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10962/192225 , vital:45207
- Description: My thesis comprises prose in a variety of forms with porous borders, including the short story, flash fiction and prose poetry. I am attracted to a processual approach to writing as I like the potential for experimentation with spontaneity and textual improvisation within and across forms that this allows. I am influenced by Joanna Ruocco’s novellas, The Mothering Coven and Dan, whose worlds are built with generously scattered references, interesting words and strange features, delivered in a dead-pan tone that joyfully scrambles my logic. At the same time, I am inspired by the precision and beauty of Tina May Hall’s prose, and how she plays in the space between the natural and magical worlds. In addition, I draw on the musicality and rhythm of Noy Holland and JA Tyler’s prose, adding a corporeal layer to the words, sounds and movement of the text. , Thesis (MA) -- Faculty of Humanities, School of Languages and Literatures, 2021
- Full Text:
- Date Issued: 2021-10-29
Museums for the Planet: Critical Realist Philosophy and the Possibility of an Eco-decolonial Museology
- Authors: Jeffery, Thomas Carnegie
- Date: 2021-10-29
- Subjects: Museums Management , Critical realism , Ontology , Decolonization , Organizational change , Social ecology , Eco-decolonial
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10962/192692 , vital:45251 , 10.21504/10962/192692
- Description: This study introduces dialectical critical realism into museology as a philosophical underlabourer for the development of new theoretical potentials for the transformation of museum practice. The idea of the museum is in a moment of fluidity evident in emergent decolonial and ecological perspectives and in the International Council of Museum’s process of redefinition of the museum. The potential to reimagine the museum lacks a coherent philosophical and theoretical foundation. The persistence of museological dualism separates the social from the ecological and absents the emergence of relational modes of thinking and practice. This study conceives an ecological-decolonial or eco-decolonial mode of museology that is disruptive of dualism and generative of relationality, and is thus generative of agency for deeper, more effective and enduring social-ecological justice. The core of this thesis is the development of the eco-decolonial mode of museology through the DCR onto-axiological chain or ‘MELD’ schema. At 1M a depth ontological analysis augmented by interviews with key informants establishes a dialectic of society and ecology in the museological context. 1M surfaces capitalism and the implicit neoliberal ontology of museology as deep causal mechanisms of the 2E persistence of museological human-nature dualism. The paradox of ‘emancipatory neoliberalism’ is a policy-practice contradiction that absents potentials for transformation of the museum and that is held in place by the grounding ontological activity of museology, collection. The 2E perspective on absences enables the emergence of new transformative pathways towards the 3L vision of the eco-decolonial mode of museology as a (4D) new way of thinking and working to resolve neoliberal restrictions. The fundamental 4D change envisioned for museum philosophy, theory and practice is an ontological transformation from traditionalist human-nature dualism to a progressive human-nature dialectic. A case study considers instances where museum workers exercised the agency to expand practice in this way. Future work using the expansive learning methodology of Change Laboratories will develop and implement the potentials generated by the onto-axiological chain for the eco-decolonial mode to bring real change to traditional, dualist museum practice, in order to ensure the relevance and the agency of the museum as a social structure in and for a changing world. , Thesis (PhD) -- Faculty of Education, Education, 2021
- Full Text:
- Date Issued: 2021-10-29
- Authors: Jeffery, Thomas Carnegie
- Date: 2021-10-29
- Subjects: Museums Management , Critical realism , Ontology , Decolonization , Organizational change , Social ecology , Eco-decolonial
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10962/192692 , vital:45251 , 10.21504/10962/192692
- Description: This study introduces dialectical critical realism into museology as a philosophical underlabourer for the development of new theoretical potentials for the transformation of museum practice. The idea of the museum is in a moment of fluidity evident in emergent decolonial and ecological perspectives and in the International Council of Museum’s process of redefinition of the museum. The potential to reimagine the museum lacks a coherent philosophical and theoretical foundation. The persistence of museological dualism separates the social from the ecological and absents the emergence of relational modes of thinking and practice. This study conceives an ecological-decolonial or eco-decolonial mode of museology that is disruptive of dualism and generative of relationality, and is thus generative of agency for deeper, more effective and enduring social-ecological justice. The core of this thesis is the development of the eco-decolonial mode of museology through the DCR onto-axiological chain or ‘MELD’ schema. At 1M a depth ontological analysis augmented by interviews with key informants establishes a dialectic of society and ecology in the museological context. 1M surfaces capitalism and the implicit neoliberal ontology of museology as deep causal mechanisms of the 2E persistence of museological human-nature dualism. The paradox of ‘emancipatory neoliberalism’ is a policy-practice contradiction that absents potentials for transformation of the museum and that is held in place by the grounding ontological activity of museology, collection. The 2E perspective on absences enables the emergence of new transformative pathways towards the 3L vision of the eco-decolonial mode of museology as a (4D) new way of thinking and working to resolve neoliberal restrictions. The fundamental 4D change envisioned for museum philosophy, theory and practice is an ontological transformation from traditionalist human-nature dualism to a progressive human-nature dialectic. A case study considers instances where museum workers exercised the agency to expand practice in this way. Future work using the expansive learning methodology of Change Laboratories will develop and implement the potentials generated by the onto-axiological chain for the eco-decolonial mode to bring real change to traditional, dualist museum practice, in order to ensure the relevance and the agency of the museum as a social structure in and for a changing world. , Thesis (PhD) -- Faculty of Education, Education, 2021
- Full Text:
- Date Issued: 2021-10-29
Remote fidelity of Container-Based Network Emulators
- Authors: Peach, Schalk Willem
- Date: 2021-10-29
- Subjects: Computer networks Security measures , Intrusion detection systems (Computer security) , Computer security , Host-based intrusion detection systems (Computer security) , Emulators (Computer programs) , Computer network protocols , Container-Based Network Emulators (CBNEs) , Network Experimentation Platforms (NEPs)
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10962/192141 , vital:45199
- Description: This thesis examines if Container-Based Network Emulators (CBNEs) are able to instantiate emulated nodes that provide sufficient realism to be used in information security experiments. The realism measure used is based on the information available from the point of view of a remote attacker. During the evaluation of a Container-Based Network Emulator (CBNE) as a platform to replicate production networks for information security experiments, it was observed that nmap fingerprinting returned Operating System (OS) family and version results inconsistent with that of the host Operating System (OS). CBNEs utilise Linux namespaces, the technology used for containerisation, to instantiate \emulated" hosts for experimental networks. Linux containers partition resources of the host OS to create lightweight virtual machines that share a single OS kernel. As all emulated hosts share the same kernel in a CBNE network, there is a reasonable expectation that the fingerprints of the host OS and emulated hosts should be the same. Based on how CBNEs instantiate emulated networks and that fingerprinting returned inconsistent results, it was hypothesised that the technologies used to construct CBNEs are capable of influencing fingerprints generated by utilities such as nmap. It was predicted that hosts emulated using different CBNEs would show deviations in remotely generated fingerprints when compared to fingerprints generated for the host OS. An experimental network consisting of two emulated hosts and a Layer 2 switch was instantiated on multiple CBNEs using the same host OS. Active and passive fingerprinting was conducted between the emulated hosts to generate fingerprints and OS family and version matches. Passive fingerprinting failed to produce OS family and version matches as the fingerprint databases for these utilities are no longer maintained. For active fingerprinting the OS family results were consistent between tested systems and the host OS, though OS version results reported was inconsistent. A comparison of the generated fingerprints revealed that for certain CBNEs fingerprint features related to network stack optimisations of the host OS deviated from other CBNEs and the host OS. The hypothesis that CBNEs can influence remotely generated fingerprints was partially confirmed. One CBNE system modified Linux kernel networking options, causing a deviation from fingerprints generated for other tested systems and the host OS. The hypothesis was also partially rejected as the technologies used by CBNEs do not influence the remote fidelity of emulated hosts. , Thesis (MSc) -- Faculty of Science, Computer Science, 2021
- Full Text:
- Date Issued: 2021-10-29
- Authors: Peach, Schalk Willem
- Date: 2021-10-29
- Subjects: Computer networks Security measures , Intrusion detection systems (Computer security) , Computer security , Host-based intrusion detection systems (Computer security) , Emulators (Computer programs) , Computer network protocols , Container-Based Network Emulators (CBNEs) , Network Experimentation Platforms (NEPs)
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10962/192141 , vital:45199
- Description: This thesis examines if Container-Based Network Emulators (CBNEs) are able to instantiate emulated nodes that provide sufficient realism to be used in information security experiments. The realism measure used is based on the information available from the point of view of a remote attacker. During the evaluation of a Container-Based Network Emulator (CBNE) as a platform to replicate production networks for information security experiments, it was observed that nmap fingerprinting returned Operating System (OS) family and version results inconsistent with that of the host Operating System (OS). CBNEs utilise Linux namespaces, the technology used for containerisation, to instantiate \emulated" hosts for experimental networks. Linux containers partition resources of the host OS to create lightweight virtual machines that share a single OS kernel. As all emulated hosts share the same kernel in a CBNE network, there is a reasonable expectation that the fingerprints of the host OS and emulated hosts should be the same. Based on how CBNEs instantiate emulated networks and that fingerprinting returned inconsistent results, it was hypothesised that the technologies used to construct CBNEs are capable of influencing fingerprints generated by utilities such as nmap. It was predicted that hosts emulated using different CBNEs would show deviations in remotely generated fingerprints when compared to fingerprints generated for the host OS. An experimental network consisting of two emulated hosts and a Layer 2 switch was instantiated on multiple CBNEs using the same host OS. Active and passive fingerprinting was conducted between the emulated hosts to generate fingerprints and OS family and version matches. Passive fingerprinting failed to produce OS family and version matches as the fingerprint databases for these utilities are no longer maintained. For active fingerprinting the OS family results were consistent between tested systems and the host OS, though OS version results reported was inconsistent. A comparison of the generated fingerprints revealed that for certain CBNEs fingerprint features related to network stack optimisations of the host OS deviated from other CBNEs and the host OS. The hypothesis that CBNEs can influence remotely generated fingerprints was partially confirmed. One CBNE system modified Linux kernel networking options, causing a deviation from fingerprints generated for other tested systems and the host OS. The hypothesis was also partially rejected as the technologies used by CBNEs do not influence the remote fidelity of emulated hosts. , Thesis (MSc) -- Faculty of Science, Computer Science, 2021
- Full Text:
- Date Issued: 2021-10-29
Spatial analysis of the impact of human activities on the marine environment in Algoa Bay, South Africa
- Authors: Maphoto, Tidimalo Mary Anne
- Date: 2021-10-29
- Subjects: Marine resources conservation Algoa Bay South Africa , Spatial analysis (Statistics) , Human ecology , Nature Effect of human beings on , Marine ecology Algoa Bay South Africa , Integrated coastal zone management Algoa Bay South Africa , Marine spatial planning Algoa Bay South Africa
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10962/192086 , vital:45194
- Description: Background: Humans have a long history of using the marine environment in multiple ways and continued use has led to a decline in the ecosystem services provided by marine systems in many places. In addition, human activities have steadily increased with time and advances in technology, further increasing impacts on marine systems. To understand and manage these impacts, we need to assess the spatial distribution and intensity of human activities in the marine environment, and quantify, where possible, their cumulative impacts on marine ecosystems. The spatial consideration of human activities and their associated impacts is important for conservation planning, Integrated Ocean Management and Marine Spatial Planning (MSP) initiatives. The main deliverable of this research study was to develop a cumulative impacts layer of human activities in Algoa Bay, South Africa, to support the Algoa Bay Marine Spatial Planning Project. Objective and Relevance: This research analyses the spatial impacts of human activities on the Algoa Bay marine environment (excluding the seashore). Algoa Bay is located on the south coast of South Africa in the Eastern Cape. The research explores stakeholders' perceptions of their knowledge of the human activities that take place in the bay. This research is informed by an expert-based geographical information systems (GIS) approach and cumulative impact assessment in order to map the spatial impacts of the activities as part of marine spatial planning. "Experts" were defined as stakeholders that contributed valuable knowledge of the human activities and their impacts; this definition of expert included "professional" and "non-professional" contributors to knowledge. The spatial aspect of the research is a significant contribution to the field as it will help inform decision-making in the Algoa Bay Marine Spatial Planning Project. Design and Methods: A mixed-method approach was used to generate data. A snowball sampling approach was used to identify research participants from key informants. Primary data were collected through questionnaire surveys, interviews and a focus group. Secondary data sources consisted of GIS data and reports from scientific organizations. Findings and Conclusion: The research findings indicate that the top three pressures that cause the greatest impact on the Algoa Bay marine environment are fishing, pollution and shipping. The cumulative impact of these activities was highest near harbours in Algoa Bay. The marine ecosystems that were most impacted by pressures were the Agulhas Island and the Agulhas Mixed Shore. The Warm Temperate marine ecosystems had fairly low cumulative impacts. The research findings indicate that there is a complex mix of human activities that impact the marine environment. This research supports the findings of other researchers that reveal that the highest cumulative impact is in areas closer to the coast and harbours owing to high population densities. Value of Study: This study builds onto the existing data by expanding the knowledge base and including more stakeholders to integrate as many human activities as possible and bring a holistic picture of the ocean's uses to inform MSP in Algoa Bay. , Thesis (MSc) -- Faculty of Science, Geography, 2021
- Full Text:
- Date Issued: 2021-10-29
- Authors: Maphoto, Tidimalo Mary Anne
- Date: 2021-10-29
- Subjects: Marine resources conservation Algoa Bay South Africa , Spatial analysis (Statistics) , Human ecology , Nature Effect of human beings on , Marine ecology Algoa Bay South Africa , Integrated coastal zone management Algoa Bay South Africa , Marine spatial planning Algoa Bay South Africa
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10962/192086 , vital:45194
- Description: Background: Humans have a long history of using the marine environment in multiple ways and continued use has led to a decline in the ecosystem services provided by marine systems in many places. In addition, human activities have steadily increased with time and advances in technology, further increasing impacts on marine systems. To understand and manage these impacts, we need to assess the spatial distribution and intensity of human activities in the marine environment, and quantify, where possible, their cumulative impacts on marine ecosystems. The spatial consideration of human activities and their associated impacts is important for conservation planning, Integrated Ocean Management and Marine Spatial Planning (MSP) initiatives. The main deliverable of this research study was to develop a cumulative impacts layer of human activities in Algoa Bay, South Africa, to support the Algoa Bay Marine Spatial Planning Project. Objective and Relevance: This research analyses the spatial impacts of human activities on the Algoa Bay marine environment (excluding the seashore). Algoa Bay is located on the south coast of South Africa in the Eastern Cape. The research explores stakeholders' perceptions of their knowledge of the human activities that take place in the bay. This research is informed by an expert-based geographical information systems (GIS) approach and cumulative impact assessment in order to map the spatial impacts of the activities as part of marine spatial planning. "Experts" were defined as stakeholders that contributed valuable knowledge of the human activities and their impacts; this definition of expert included "professional" and "non-professional" contributors to knowledge. The spatial aspect of the research is a significant contribution to the field as it will help inform decision-making in the Algoa Bay Marine Spatial Planning Project. Design and Methods: A mixed-method approach was used to generate data. A snowball sampling approach was used to identify research participants from key informants. Primary data were collected through questionnaire surveys, interviews and a focus group. Secondary data sources consisted of GIS data and reports from scientific organizations. Findings and Conclusion: The research findings indicate that the top three pressures that cause the greatest impact on the Algoa Bay marine environment are fishing, pollution and shipping. The cumulative impact of these activities was highest near harbours in Algoa Bay. The marine ecosystems that were most impacted by pressures were the Agulhas Island and the Agulhas Mixed Shore. The Warm Temperate marine ecosystems had fairly low cumulative impacts. The research findings indicate that there is a complex mix of human activities that impact the marine environment. This research supports the findings of other researchers that reveal that the highest cumulative impact is in areas closer to the coast and harbours owing to high population densities. Value of Study: This study builds onto the existing data by expanding the knowledge base and including more stakeholders to integrate as many human activities as possible and bring a holistic picture of the ocean's uses to inform MSP in Algoa Bay. , Thesis (MSc) -- Faculty of Science, Geography, 2021
- Full Text:
- Date Issued: 2021-10-29